I have it on an Evercade console with a PS4 controller, it connected perfectly and I mapped its buttons perfectly, I play games wirelessly. Also, the shipping was fast and perfectly packaged. All 8 Bitdo products are excellent.

It says it's also for PS5 and when I put it in the console it says it's not supported, waste of money

I had bought it five years ago and I used to connect my Nintendo Switch with a DualShock 4. After a long time of not using it, I tried to play again recently and it wouldn't connect at all. From the comments here and videos on the internet, I did the upgrade too and now it connects normally.
Very good.

Good product but after 2 times of software upgrade through the company it still often freezes in communication and I give commands to the controller and it executes them with a delay, resulting in my movements not being precise. The stick is on a PC and connects a Nintendo Switch Pro controller at a distance of at most one and a half meters.

after some time of use, it may freeze, the buttons may change by themselves and it may need resynchronization, etc. The problems are temporarily solved if you remove and reattach it. Refers to nintendo switch 2

Very easy connection.
I use it to connect an XBOX X controller to PC.

Positives:

+Updates at regular intervals

+0 Input LAG extra from the flash drive, so the device (in my case ps5 dualsense) works at its limits and the feeling of lag due to Bluetooth is negligible

+Version 2 of the adapter does not disconnect your controllers after long inactivity like the v1 adapter

+If you want it for Nintendo Switch, the ps5 controller, for example, pairs with the adapter and not with the switch itself, so you can play simultaneously on your ps5 console plug n play!

+Optimized motion control accuracy. Some users report that it has better resolution of the sticks and triggers, and some say it even stops stick drift!

P.S.: Don't forget, if you have disconnection issues, to also update the ps5 controller to the latest version, in addition to the flash drive!

For 25 euros for its performance and range of usefulness, it is very good. I got it to be able to play on the Switch with a PS5 controller, but I also use it on the PC, with a very good software to configure the controller and for some projects on a Raspberry Pi that I have. What stands out, I believe, is how many controllers it supports... even with a Wiimote :)

Bomb!
Although I paid 70-80 euros to have a PS5 controller on Nintendo Switch, it was the only option since I already had the Dualsense.

It's fine, I only encountered a disconnect/bug after a few days but I think it's just my imagination, I disconnected the dongle and put it back in to deactivate it, I remember.

It accepts updates so it's a nice device.
It also has a program for the computer where you can program the dongle itself, but I didn't use it.