Quite good, but prefer the Noctua NF-F12 industrialPPC-3000; it is much more powerful and much quieter at the same speeds...

Flawless in everything: cooling, stability, noise. However, regarding the noise, you need to set them to full load; of course they sound quite a bit, but it is unnecessary for them to run at full load if you are not reaching 90 degrees inside your case

This is one of the most powerful VFM (Value for Money) little fans on the market! It offers excellent airflow and static pressure for its price, doing an excellent job of cooling the system.

The only thing you need to keep in mind is the noise: because it reaches up to 3000 RPM, from 50% of its speed and above it starts to become noticeably noisy. If set up properly via a PWM custom curve on the motherboard (to run low at idle and ramp up only under heavy load), it is an excellent and affordable choice!

The best thing at this price. They give you almost all the performance of Noctua, but at an amazing price. With 35 euros I got 3 P12 and 3 P14, while the Noctua cost about 30 euros each! If you don't want to spend a lot, don't even think about it. ABSOLUTELY SATISFIED! My case breathed!

Very good for the price

These fans honestly great. All I can say is good temps, good airflow, uses static pressure and they do look good. However, these Arctic fans do come with some flaws, where they can be loud when playing games at ultra settings with fancy shaders, and for aesthetics, they look a bit too bright, often reflecting on monitor, but unless u mind about their aesthetics or u don’t wanna spend more money on fans, those are pretty much the most reliable ones u can find for a budget PC

They replaced the stock fans on a CoolerMaster Masterliquid PL360 Flux aio and solved the noise problem in combination with the temperatures. They managed to keep the i9-13900k (which is on 'smart' undervolting), in a lian-li o11 dynamic xl case with the aio on the side and in a pull configuration (bringing in fresh outside air), at 36°C idle and 77°C at full load (45°C to 50°C in games like Starfield @ 4k). And all this with a speed range from 900 to 2200 RPM. I did not expect something like this at this price range. I recommend them for now as I have only had them for a month.

So, in general, they are good fans, but be careful, the 25db maximum does not exist; know that the fans at full speed are very noisy. Recommended for professional use; for a simple gaming PC, I don't think you will need such powerful fans

For their price, very good, they were installed in a Lian li o11 mini v2, I don't run them above 1k-1,400rpm on the Curve and up to that point the sound signature is very smooth and almost silent. The only thing I don't like compared to the older ones, e.g. p12 ARGB, is that the LEDs don't diffuse as well at the base of the fan/motor and you can distinguish the individual LEDs. Maybe it's because the plastic of the blades/base of the fan isn't as milky or thick, I'm not sure, but the older one definitely had better light diffusion. (it doesn't show well in the photos)
Other than that, at this price, it's hard to find a reverse blade with this performance.

I have the kit with the 5 pcs. Very nice fans with visibly high build quality that you can tell just from their weight. At the current price of the set (~25 euros) it is VFM. However, I expected them to be quieter. At 40% where I have them, they make a constant slightly annoying hum, and in my case, they also resonate with the case so the hum becomes even more noticeable. If noise is something that concerns you, I would suggest going for the regular Arctic P12s, which I have on my CPU Cooler and they are much quieter.