I've been playing with it for a month now in FPS (Battlefield 1 on PS5). I have remapped all 6 extra buttons. I have normal fingers and the back buttons are not convenient at all. For €200 it's not worth it at all. Only get it if you have long fingers! Also, it doesn't have hall effect analogs and it will definitely break soon.

Update: After a while, I finally managed to get used to the buttons. Either way, be careful. If you have short fingers, it won't work for you at all!

It does not have proper targeting when it comes to shooting games, generally it loses quite a bit on the sticks and especially on the PS5, while it works better on the PC. You cannot customize all the buttons on the PC, only on the PS5, and compared to what the application provides, it does not allow changing the settings for all buttons except for the additional six it has. Unless the game platform or the game itself allows you to change these.

I didn't have time to play and it turned out to be defective!!! I press R1 and the PS button pops up too. I give 5 stars because when the replacement arrived, it works just fine! I’ve gotten used to it and I can't hold any other controller in my hands! It’s worth its money! The back buttons are perfect, and generally, it's just a matter of getting used to it.
Update!!!
After almost a year of use, I have to say it's a beast!!! Through the app, you can fix stick drift and adjust how sensitive you want the sticks to be.

A week or so of gameplay...
I resorted to this solution due to problematic PS5 controllers (bought 2 additional ones and they all had issues after 6-12 months)
Compared to the Sony PS5:
1. The plastic feel is similar to the PS5, but at this price, I would expect much more.
2. It is lighter.
3. Similar battery life.
4. Much better click on all buttons in my opinion.
5. Additionally, it has 6 (!!!) buttons (4 with a click), the 2 triggers (I have attached a photo).
6. The R2-L2 locks and functions as a click instead of triggers.
7. The surface is textured, providing a more stable grip, especially during long hours of use.
8. It offers 2 additional magnetic joystick heads that change the height, making it easier for those with shorter fingers to adjust.
Regarding wireless communication, the use of the front port is necessary as it causes interruptions...
Unfortunately, software upgrades are not supported from Mac or PS, only from Windows.
The use I make of it is for simulator games.
As time goes by, it seems better to me...
Every now and then, I play with the genuine controller and it feels cheap...
The only objection is the battery indicator, which appears almost empty when it is actually halfway full.
UPDATE 15/12/23
After 4 months of gameplay, if I hold an original PS5 controller, it feels fake to me. I have gotten used to the layout of the joysticks better...
The negative aspect remains the battery indicator, which, however, does not show reduced performance.

Very good controller but I didn't enjoy it for even a week. It happened to be defective