As a lot of reviewers are saying, it feels very close to the Steam Deck controls. The trackpads are slightly different texture and a bit more refined (in a good way). The D-pad and face buttons feel good to me as a longtime gamer.
I’m used to the Xbox Elite 2 these days and this is quite a bit lighter in weight and feels more like plastic, but still solid enough (again, like the Deck). I do maybe prefer the 8-edged D-pad and I’ll probably miss the trigger stops, but gyro and trackpads and grip sense should more than make up for it.
I reserved 7 minutes after the option for 2nd wave went live, no follow-up email yet but glad I’ve not seen too many faulty hardware reports so far. Some people had a creaky left joystick afaik but not a widespread complaint.