Excellent for the price I bought it at 68 euros with shipping. -Original design that doesn't look like any other. -Original internal layout - the PSU is placed at the front with the fan pulling air from outside. This way it saves space at the back so it can accommodate even ATX motherboards despite its small external dimensions. Essentially, it has the size of a Mini tower. Also, the PSU doesn't collect as much dust as it would if it were on the bottom side. - It can be placed upright or sideways. - It has holes for fans everywhere - front, top, bottom, and filters everywhere, magnetic at the front and top that are easily removable and washable. Even at the bottom, which has rubber clips. -It has holes for cable routing on all 3 sides, and because it is thick, it has ample space for cable management. The panel with the AIO USB on-off switch, etc., can be placed at the front, top, or bottom, always on the side of the transparent panel. -It has one fan at the back. -2 hard drives 2.5 or 3.5 can be placed at the back and I assume also at the bottom if necessary. A good choice for something different and quality at an affordable price.

A pretty good "small" case, with very good ergonomics in terms of its size and philosophy. Definitely experimentation will be needed for the correct and practical placement of the hardware, but the results are positively surprising! Its construction is good without anything special, the removable filters perform well and there is enough space for cable management. A big plus is that extra fans can be strategically placed in such a way as to maximize cooling!

As for the temperatures, which is the main reason why the case has been discussed quite a bit, it is definitely particularly bad in stock form. The airflow is minimal! Personally, 6 x 120mm p12 pwm fans from Arctic were installed, which do a great job resulting in temperatures staying at particularly low levels compared to a previous build in another case with better airflow according to reviews and with the same hardware (medium-high end).

A fairly decent case for those who want ATX in a small package, beautiful and minimal that can accommodate almost everything in terms of hardware.

I have the above case for about 6 months and overall I am satisfied. It looks very nice. I was disappointed when I found out (after the purchase) that it has one of the worst airflows among cases in 2019 (tested by "gamers nexus" on YouTube). The reason is that even though it has holes everywhere and seems to have good airflow, each side ends up being 70% metal and 30% holes because there is a large distance between the holes. Until then, I hadn't noticed any temperature issues, but afterwards, I realized that there is indeed a small problem. I have a Ryzen 5 3600 and an MSI RX 580. Initially, the temperatures were 70+ degrees Celsius for the CPU and 75+ degrees Celsius for the GPU under load, and the stock AMD cooler was struggling.

So, I bought some 140mm fans for the case, which I recommend everyone to buy and include in their budget (or 120mm), and a CPU cooler (optional). On the case's website, CoolerMaster says that it doesn't support 140mm fans in the front and bottom, but there are holes for:
Top: 2x 140/120 mm
Bottom: 1x 140/120mm + PSU | 2x 140/120mm
Front: 1x 140/120mm + PSU | 2x 140/120mm
Rear: 1x 120mm
The PSU can be installed either at the bottom or on the right-top, and depending on that, there is space for 1 or 2 fans.
⚠ If you install the PSU at the bottom, the entire ATX motherboard won't fit. For ATX, the PSU must be installed on the right-top.

It comes with one 120mm fan at the back, of average quality.

⚠ On the bottom side, even though it has holes, if you install a 140mm fan, it may "hit" and you won't be able to screw it in (at least my fan, which is 27mm in height). I recommend using a 120mm or slim 140mm fan for the bottom.
edit: in the photos, it seems that it barely doesn't touch the front panel connector, but it hits the bottom part of the motherboard, so it can't fit below the motherboard and there is a small overlap. The 120mm fan doesn't screw in below the motherboard but in the front, so it won't have any issues.

⚠ Since the case has holes everywhere for airflow, you can tie the cables with zip ties to them (they don't fit perfectly) a bit to the side, and you won't be bothered by the holes. That's what I did. Also, it can fit a 140mm fan in the front, even though it's not mentioned on the website, but be careful if your PSU is long, like the Corsair HX Series HX1200, the 140mm fan may not fit.

As for cable management, it's generally a difficult case, but it has a lot of space at the back. There are many points to hide cables and route them to the back, so you can have a visually pleasing result. For me, it was the most challenging cable management I've done, but it turned out very nice.

The PSU mount is also a bit strange. Don't confuse the screws because some are small and go through the inside. When I switched from a full wired to a semi-modular PSU, because the cables would be somewhat visible, with a semi-modular PSU, the result is much nicer visually.

The front panel can be mounted in 3 positions: top, right, and bottom.
⚠ If someone wants to mount the front panel from the top and pull the USB3 to the bottom side of the motherboard (where the connector often is), the cable won't reach to pass it behind the motherboard and below. You will need an extension or the cable shouldn't go behind and be in the middle (boo! for the last option). I recommend mounting it on the right side so that it covers the PSU cables a bit.

I saw in videos that it supposedly doesn't have good build quality. It's actually fine. It's not made of steel, but for a budget case, it's very good, and everything is in its place. The side panel is not tempered glass, which I don't like.
The PCI caps are metallic and screw-on, not glued on, which eliminates the need for breaking them.

It is not a disaster as often presented on YouTube, even without the case fans. The Ryzen 5 3600 starts throttling at 95C, and I wasn't even close to that. On my GPU, the fans didn't go above 75%, which means there was room for more. Sometimes it just made a little more noise before I installed the case fans.
edit: with an upgrade to the MSI 5600xt gaming X, which has a thick cooler, the GPU fans don't even start, and I can barely reach 70 degrees, and then they start to lower it (I haven't adjusted the fan curve).

After all this, I wouldn't recommend the case. Today, at 70 euros plus an additional 15-20 euros for fans, we reach 85-90 euros. With that money, you can definitely get a case with better airflow and tempered glass on the side, which are available within this budget.

If someone, like me, really likes the design, then go for it. It's not a disaster and it's very nice to play with.

I bought this specific case to accommodate a full ATX motherboard and it fits perfectly, with all the necessary space without anything being cramped.

The case is generally good, but I will mention the NEGATIVES first, as I believe it is somewhat misrepresented as a general impression by others and there is an exaggeration surrounding its overall image.

Here we go:
1) The problem with the case, as can be seen by searching various articles and YouTube videos, is the management of heat inside, in such a way as to maximize the airflow. All hardware components are closer to the walls of the case (which is logical), so strategic management of space is required inside. However, this is something that can be partially addressed by installing extra fans on top (it can fit 2x 12 or 14 cm fans), at the back (it has 1 pre-installed medium-quality fan), at the bottom (it can fit 2x 12 or 14 cm fans), and at the front (it can fit 1x 12 or 14 cm fan, if the size of the power supply allows it).

2) Another downside (relative) that is generally mentioned and confirmed (without bothering me) is the quality of the side cover, which is not glass but plexiglass. This means that it is lighter, doesn't break as easily, but it easily gets scratched and becomes dull. However, if you pay attention to it, I don't think it is a major deterrent factor!

But on the POSITIVE side:
1) If you know how to assemble/build a machine, you can create a system with a full ATX motherboard and a LARGE graphics card that looks REALLY NICE and takes up a REALLY SMALL SPACE relative to what it accommodates.
2) The metal frame is of high quality and sturdy.
3) It has available space for very good cable management at the back, so that only a few cables are visible inside. However, with such a case, it is necessary to do the best job possible to ensure that there are no obstacles to the airflow.
4) The filters on top and front are VERY PRACTICAL, as they offer both an aesthetic aspect (nice design) and make cleaning the case VERY EASY (they can be easily removed with magnetic frames)! The bottom filter is average in quality and fit, but it doesn't make much sense since it can be removed with simple plastic supports less frequently!
5) The PRICE!!! I bought it for 55€, but it is not easy to find such a combination of price, size, good quality, and a reputable brand. It is a good value for money if you have the knowledge to make use of it, as most cases cost much more and the only extra thing needed is 2-3 fans for cooling/air circulation!

I recommend this specific case if you are not planning to install high-end or power-hungry components that generate a lot of heat and if you want to "squeeze" a complete system into a small "package".

Update 14/10/2019:
With good cable management, a good CPU cooler, and 2-3 good fans, I have managed to have no issues inside, even with quite a bit of hardware that traditionally would easily raise the temperature (AMD FX 8350, RADEON RX 570, PCI Wifi adapter, PCI TV Tuner card & PCI SoundBlaster).
The 2x 12cm fans on top do an amazing job and remove a lot of heat from the processor, the default fan at the back also does its job and the bottom cards have a gap from the power supply to take in air from below/front - just make sure to pull the power supply cables completely to the side/back of the case, so they don't hang in the middle! It's really an exaggeration for nothing, if you know how to optimize it! And I haven't even installed fans at the front or bottom!