I recently bought and immediately returned an 8bitdo controller. In this case the ultimate C2.

It was uncomfortable to the hands. It has a strange narrow shape, to us accustomed to Xbox controllers.

But the worst thing were the triggers. They had a massive dead zone that made it unplayable to any game requiring progressive input on the triggers. Like they wont start registering the input until 1/4 pressed, and there was no feedback on when they would start registering input. For racing games it was 100% impossible to play.

That was a quick return and a sad red X over the brand for me.