I haven't used it yet, but indeed from the reviews I have read and seen, it is very good, just to inform that you will not find custom cables for this power supply on the market (at least not yet). There are only extensions. I intended to put it in an ssf build, but it has long cables so it is still sitting in its box. This is also the reason why I am writing this review.

After 15 years of using power supplies from Super Flower, it was time to dedicate a little more time to share my overall experience. This company, which once manufactured top-tier power supplies for EVGA (such as the P2, G2, T2), has completely won me over. During this time, I haven't lost a single power supply or component, even when the electricity company does its own thing (I still have power supplies that are 15 years old). Especially with 2 servers running 24/7, knowing that whatever happens, I'm covered, and I prefer them over going to get others.

Now, more technically:

When I opened one of their models to see the components, I was truly impressed. The Leadex VII PRO surpasses it, of course. It has exceptionally high-quality materials that I found only in power supplies worth 400 euros (from those that have come into my hands), with Japanese capacitors rated for 105°C and quality transformers with ferrite cores. It also features built-in active PFC.

Protections included:

Over Current Protection (OCP): If it draws more current than normal, it shuts down to protect the components.
Over Power Protection (OPP): If the system requests more power than it can handle, the power supply turns off.
Over Temperature Protection (OTP): If it overheats, it shuts down to prevent damage.
Over Voltage Protection (OVP): If the voltage rises too high, it shuts down to protect the components.
Short Circuit Protection (SCP): In the event of a short circuit, it shuts down for safety.
Surges & Inrush Protection (SIP): Protects against sudden spikes in current.
Under Voltage Protection (UVP): If the voltage drops too low, it shuts down to avoid instability.
Evaluation:

Performance: 92/100
Very efficient, with 80 PLUS Platinum certification and stable operation in demanding systems. It easily handles 4090 (it also has the relevant 12VHPWR cable).

Noise Levels: 85/100
Silent Fluid Dynamic Bearing 140mm fan, which is only noticeable under very high loads, but still very little.

Build Quality: 95/100
Excellent quality of materials, I don't know if there are such premium components and durability that withstands the test of time at this price.

Features: 90/100
Fully modular design, with good protection technologies.

Overall: 90/100
Without being biased, one of the best power supplies on the market, ideal for demanding systems, professional applications, and everyday use.

Aside from my own measurements, similar ones I found, like those from hwbusters which were quite detailed, rated it with excellent stability on the 12V lines, while its response to sudden load changes was outstanding.
In summary, if someone is looking for a power supply that won't let them down, this one is truly unique in its price category. Personally, even with the intense competition that exists today in the market, I see that, despite the popularity of the company, it continues to surpass its competitors. It is one of the few companies that, instead of investing exclusively in marketing, remains focused on the essence: high build quality and durability.

I bought this specific power supply after a lot of research.

First of all, I initially wanted to buy a power supply to replace my old Corsair RM750 80PLUS Gold, which I have had since 2014.

The old power supply was working flawlessly (and still is) despite all these years. However, for safety reasons, it was necessary to replace it due to the numerous power outages and bad weather conditions over the past decade.

I have had it for 15 days so far, and obviously, I haven't encountered any problems. Additionally, in the near future, I will be upgrading my parts because at the moment, with the Ryzen 3700X and GTX 1080 that it powers, it won't face any load. The goal is to power a high-end system with the upgrade.

In general, based on my experience with previous systems, purchasing a good and reliable power supply is the most necessary and correct choice for a system. It is better to save money from other parts to invest in a PSU, as not only will it last for many years, but it will also give you peace of mind knowing that your system is being powered properly.

Furthermore, it is easy for cable management. All the cables, except for the motherboard, have the same connector on the power supply, so you can arrange them as you wish to facilitate your setup. Due to this fact, it also supports the ATX 3.1 version. It also includes the 12+4pin cable for the RTX 4000 series.

I must mention that I bought it for 180€, which is an excellent price for an 80PLUS and Cybenetics Platinum Certified power supply in terms of efficiency.

Finally, for anyone in search of a new PSU, I would recommend taking a look at this one, as it is a very good choice.