With i7 14700KF+3080 FE, 32 gb ram, 2xSATA, 2x M.2 and 5xFans+water cooling, the machine could not perform at full capacity.
850W is not enough due to the power peaks that cpu+gpu make if you do gaming or 3d rendering, AI, etc. Everything was running at higher temperatures than it should because of the extra power draw. The power supply fan broke after a year, causing the pc to sound like a broken air conditioner.
1200W bequiet straight power 12 and everything is perfect.
Temperatures with:
Seasonic Focus GX 850W
Cpu: 100-102 degrees Celsius full load. Water cooling liquid 45-46 degrees Celsius full load.
Gpu: 90-102 degrees Celsius full load.
Bequiet Straight Power 12 1200W:
Cpu: 85-95 degrees Celsius full load. Water cooling liquid 32-41 degrees Celsius full load.
Gpu: 65-70 degrees Celsius full load.
Just by changing the power supply.

Bought two years ago basically because of the name. A little while ago, the blue screens started on the computer without anything being changed. Then the fan started making noise, the world began to break down, and it started running very slowly. Then it was over. Wasted money, stay away.

Excellent PSU in amazing packaging. It comes with 2 beautiful cloth bags with many cables and a short circuit tester for checking proper operation before installation. It also has many connections. It has a hybrid mode so the fan doesn't work when there is not a high consumption/heat. No coil whine. I had a coolermaster 700w 80+ for 9 years that still works fine but I changed it to be sure. The 850w gx focus draws 50W less in idle pc state!! I found it unbelievable. I believe it is a good value for money and will not disappoint.

Unfortunately, it burned 2 motherboards.
I chose it because of the excellent reviews and its length (140mm) as it had to fit in a mini case (Tacens AC4).
It worked fine for 2 days. On the 3rd day, the computer suddenly shut down and wouldn't turn on again. The service told me that the motherboard (which I had been using for 4 years with an EVGA power supply) was dead.
I ordered a new motherboard and after installing it, the same pattern repeated itself, as the computer worked fine for 2 days and then wouldn't turn on again on the 3rd day.
I returned it to the store and got an EVGA again, which has been working flawlessly for months.

In the exact same machines (only the power supply changes), it lowers the CPU temperature by 2 degrees. Excellent performance.

What can we say about Seasonic, one of the best - if not the best - power supplies. The present one was purchased 1 month ago, so I can't have an experienced opinion yet, but my old Seasonic was purchased way back in 2006 and it was the only stable component in my computer during 16 years of various peripheral upgrades, until it reached its full lifespan and I built a new computer from scratch. And no, nothing happened to it, I still have it in my old PC which I have now turned into an HTPC.

It goes as expected, based on the specifications and comments, it hasn't burned out on me with frequent power outages, etc., but from the beginning, I have it connected to a safety power strip that draws power from an "Amarad Protective Safety Supervisor 3500VA VP-16A" for $24

Very good power supply, it has nothing to envy from the most well-known brands of power supplies, it works flawlessly for a year now

Guys, I've had it here for about a month now and as expected, it works perfectly.

I have no complaints at all and in fact, the cables were easily trained since they are soft compared to other well-known brands I recently tried. I recommend it.