After having owned this for a week and a half now, I can say that this little controller is an awesome addition to the category. Pair it up with Game Native on my Android phone and I basically have a steam deck in half the size.
I've seen tons of hype and anti-hype out there on the web. I think the bottom line is that this controller excels at portability. It is not going to compete against the best controllers out there as far as comfort and best usability experience. But it is 95% of the way there while being super smaller to throw in a bag or pocket.
Holds my Pixel 10 Pro XL with no trouble.
Issues I've had which I'd love to see fixed:
1.) Steam doesn't recognize the gyro on the current firmware. This means you have to enable it on the controller which turns it on permanently. That's annoying (but not game ending).
2.) Swapping between paired items is a bit slow. I happen to be using this with a number of devices, and even using it professionally running live streaming cameras. It's difficult to move between connected things like my phone, iPad, etc.
3.) Sleep settings are too aggressive. Its narcoleptic. Unless you're using it 100% of the time it falls asleep, which disconnects it, which means you have to wait ~15 seconds or so for it to reconnect. Not a problem while gaming, but definitely a problem if you run for a drink or the bathroom. I'd love for a setting to extend sleep or disable it entirely. I'll put it to sleep when I close the lid or hit the power…