Well guys, having the phone for 2 years and something, I have a complete opinion about it.
Positives:
- Perfect screen resolution, etc.
- Awesome camera
- It doesn't lag at all, at least during the first year when the battery is good.
Overall, it has everything you expect from the Apple brand.

Negatives:
- If your screen breaks, the imitations that circulate for 50-150€ are rubbish. Only if you find a genuine new one, it's worth fixing.
- CALLS: Many times, I don't sound good from the first day I got it.
- If the earpiece breaks and they replace it within the warranty, check the Face ID because it is together with the earpiece, it's like the fingerprint with the old home button. It's very difficult for them to adjust the Face ID to the new earpiece, so be careful not to fall for it.
- After 2 years, it has started to lag in games. Maybe it's also because of the battery-screen (Chinese one from the 50€ model).

In summary, if you are going to keep it for a year and then get a new one, it's worth it. Otherwise, no, the quality has deteriorated a lot. It's not like the old 'dogs' that the company used to release

First of all, I am referring to the 256GB space gray version (not that it matters much). I have had the phone for 3 months, so I have formed a solid opinion about it. I upgraded from the 7 Plus to this phone because with a little more money, you can upgrade to the next generation of the phone. What do I mean? The 7 Plus and the 8 Plus don't have huge differences, at least in appearance. When I held the X in my hands, I truly felt like I was holding an innovative phone.

Fortunately, Apple didn't compromise on the design and used very good materials, with the steel casing being the highlight instead of aluminum. The vertical position of the cameras offers a different sensation. Now, let's talk about the internals.

The A11 processor is simply incredible, with speeds that are rarely seen in mobile phones. However, one could argue that the processor is not fully utilized in this device, as it has so many capabilities that would be better suited for a laptop.

The screen resolution covers even the most demanding user, and the battery lasts me about two days with mainly browsing, so I am very satisfied.

Regarding the camera, the only thing I have noticed is that it struggles with night shots. But other than that, there are no issues.

The highly debated and controversial notch personally didn't bother me anywhere, and after the first two days, I got used to it. It also adds a different feel to the phone, making it stand out. As for Face ID, I have no complaints. For those who argue that it should unlock immediately without needing to swipe up, I would like to emphasize that it also has to do with our security and suspicion. When notifications and messages come in, they cannot be seen unless you "look" at the phone.

In conclusion, it is a worthy device that Apple has invested a lot in and has come out as a winner.

P.S. Regarding the price, which I didn't mention, I will just say that for Greece and Greek standards, it is true that it is a bit high. However, you have to compromise and accept it.

P.P.S. In comparison to the XR and XS, if you are considering switching, just NO. I have tried them and the XR lacks in resolution (720p in 2019?) and there are minimal differences with the XS. But if you want a slightly larger device and your pocket can handle it, then yes, the XS Max is worth it

Now I can say that I have a complete opinion because... in recent years technology has been evolving rapidly. That's why, due to my job, I receive 1 or 2 phones every year from different companies and I can say the following... there is no phone like this one. In the past, I also had an iPhone, then I tried Samsung twice (s8, note 9), Huawei, and Xiaomi, and I never bought cheap phones, I always went for their strong points... I can say that overall I was satisfied with everything. The thing is that it doesn't really matter if it's a 2017, 2016, or 2019 phone because when you get something powerful, it can compete with other phones for five years... that's something that no phone, except for the iPhone, especially from the 6s plus and onwards, has been able to do. The reason is simple; it's iOS and that automatically tells me everything personally. It's high quality, the call quality is great, the photos are magical, and the videos are equally fantastic. The speakers are clear and loud (although I don't use them much because I use headphones), they work more than enough. The battery is extremely helpful, the resolution is not super wow, but it has such a nice color and black balance that makes you feel like you're looking at an expensive OLED TV. Finally, the most important thing is that it's very fast, it doesn't lag for any reason, and all the talk about other phones being faster is nonsense, it's just that the second delay on the iPhone is because it's smooth and it's designed to adapt to the user naturally... everything is well thought out. Now, as for the price, the company is generally expensive everywhere, but here in Greece, buying such a phone is equivalent to a whole salary and your pocket needs to handle it. Now, if someone saves up and says they want to buy something good and have it for many years until they retire, it's the perfect purchase, but for someone who tends to break things, who is the type to change phones every three and a half seconds, and doesn't have a lot of money, it will literally cost them... I emphasize that I have had this phone for a very long time. The reason I am writing this review now is because I wanted to compare it with other phones and I can confidently say that if I have to give one point to any company out of the ones I have tried in this five-year period, I give it to Apple clearly... happy shopping

I have it for about 10 days... coming from an LG G4... and somewhere here I have to say that it is my first iPhone.
The phone gives off something very premium in appearance and also when you hold it.
The notch personally didn't bother me at all even though it's big.
Gestures I easily got used to.
Face ID, if you have attention requirement enabled, I found that many times it didn't recognize me with sunglasses on, but also sometimes during the day and mainly at night it didn't always recognize me and told me to enter the passcode about 20% of the time.
When I disabled the attention requirement, the phone unlocked always about 99% of the time.
I found Face ID convenient compared to having a fingerprint scanner on the back of the phone.
The screen is very good in terms of brightness, colors, etc. The screen doesn't have a blue tint when tilted like many OLEDs do.
The sound is very good when watching videos, listening to music, etc.
Photos during the day are nice and natural, but at night I found that almost all the photos I took made the eyes red. There is a function on the phone that removes them, but it still left a bad impression on me. Generally, at night I would like something more.
With this phone, I fell in love with the portrait mode!
Selfies could be better at night or in situations with poor lighting.
The battery easily lasts me the whole day... (at least during winter)
Overall, the transition from Android to iOS seemed a bit strange to me at first, but now I have gotten used to it and it seems great to me.
The iOS Synaptics are very good, as well as the whole operating system works extremely smoothly.
As for the negatives, it's that you pay as much as you pay and you don't have fast charging in the box...
I went for the iPhone X and not the XS because I didn't consider it worth the extra money just for slightly better camera, RAM, and processor. The A11 is still great and will be even though it has a 10nm architecture.
--> What would I like the next iPhone of 2019 to have?
Even better battery life. I consider the size of the X's blueprint to be too big.
Fast charging in the box.
Wide-angle camera for landscapes, buildings, etc.
And a step up in low light photography for the main camera as well as for selfies

Good mobile phone, very fast. The sound is incredible, as well as the videos and the screen. It has a lot of features, but I think almost half of them are useless (like Animoji). It has some minor glitches, but luckily very few. What bothers me about this phone is its battery, it is heavy and a bit bulky. Because it is made of glass, it easily slips from the hand, so you need to use a non-slip silicone case, which makes the phone bulky and difficult to handle with one hand. It is annoying that the updates constantly change the environment that you are used to. Sorry guys if my review is not pleasing to some, but the negatives need to be mentioned so that future buyers are aware.

1. The face ID is slow and the phone needs to be held vertically to work. For example, if you are lying down in bed and your head is sideways, you need to lift the phone from the nightstand and turn it sideways to unlock it, just like your face. (Very good for 1300 euros, technology is advancing and Apple is selling it to us).

2. The battery is 2710 mAh (the XS has a smaller battery, what can I say...??!?) and it lasts only one day. It takes 3 hours and 50 minutes to charge from 20%!!! (They could have put a larger battery capacity). That's why they removed the battery percentage display, so that it doesn't seem to drop rapidly. The fact that the battery indicator is not shown numerically is disappointing. Apple could have removed the battery icon and just displayed the percentage so that I know how much battery is left... APPLE 2018
P.S. - The phone charges much faster in flight mode.

3. The screen is good and large, but things are accidentally pressed during use. Anyone who says otherwise is mistaken. Let us know in the comments.

4. They made a strange decision and placed the status bar far from the thumb at the top of the screen on a 5.8-inch phone. You need to have gorilla-sized hands for your fingers to reach there. They could have placed this gesture from bottom to top, closer to the thumb, so that you don't have to worry about dropping it and don't have to perform finger acrobatics.

5. The side button is the most useless thing I have encountered on the iPhone X. I accidentally take 50 screenshots every day when I want to hold and lift it, or when I want to lock it, because of where they placed it.

6. The phone heats up when I edit videos and photos, but luckily it doesn't heat up when charging with a regular charger. Apple was stingy to include a fast charger adapter in a 1300 euro device.

7. The iPhone X is surrounded by chrome-plated steel for 1300 euros... Be careful because it scratches easily and every scratch becomes a permanent mark.

8. Another thing that disappoints me is that I want to charge it (because the battery keeps dropping) while I'm using the handsfree. Since they removed the Jack output, they couldn't add an extra adapter that accepts both the handsfree and the Jack plug so that you can talk on the handsfree and charge at the same time. And who hasn't experienced this?

9. Well, let's not even talk about the black notch. I have a 5.8-inch Apple screen with a black notch on top. You should know that I really like it! And the funny thing is that some Chinese/Android devices also have it. It's all about marketing.

10. And the worst thing of all, which no one seems to mention, is that some device owners may not have noticed. The camera absorbs tremors in very small vibrations. Something that it didn't have in the 3g, 4s, 5s, 6s, 7, and 8plus that have passed through my hands. You'll ask me what I mean. Take your device and place it on your car dashboard and press REC for video... the absolute disgrace for a €1300 device! You'll tell me, why do you need your phone on the car dashboard? We put it there to capture a timelapse, brother... Does it matter?
Also, the camera trembles when recording when it's close to a speaker with good bass. Unacceptable!
Now, if someone doesn't find these things useful from my experience, it doesn't matter. We speak the truth and neither Apple nor any other company gives us bread. On the contrary, we go and complain to them so that we can have a device with an expiration date of only five years.

Maybe the phone is amazing as others say, but I came across a problematic device and I have a different opinion. Well, the main thing didn't work at all, the face ID barely functioned, the touch screen was unresponsive and the screen was freezing, and it was overheating unbelievably. And the cherry on top, the photos were terrible with a huge black spot on each one. After contacting the store where it was purchased, it was sent to Apple Service for a new phone, costing 1200 euros for camera replacement to fix the problem with the photos and face ID, as well as software reinstallation to fix other issues. It's a factory problem in an expensive phone and it's not being replaced as it should be, but only the camera is being changed.

Update: The phone was sent to the service for the second time with the main problem being face recognition failure and battery life not exceeding 4 hours if you watch some videos on the face. It was returned to me with software reinstallation. It was purchased in March from a store with the current price of 1195.85 euros. My advice is to choose stores that are either of the mobile network you use or official representatives because in other cases, you will testify if a problem arises. Trust me, it's not worth the trouble for a few euros and the inconvenience and bad treatment. Basically, I didn't gain anything because I was forced to buy a second device while the expensive new phone was in service. Pay attention to the after-sales tactics in case of a defective product, not just the service until the money is in the account