So I installed and played a smattering of different games so far. Rock solid performance, no crashes, no issues outside of Uplay. I did manage to get everything working on that end though, and Black Flag is very much the best AC game as it's always been. It's funny, playing on a smaller screen makes it feel very much like a different experience. Still, the IQ is clean, and it looks surprisingly good for a 9 year old game.
Elden ring plays well, looks clean. Sonic & All Stars Racing Transformed is great. Bioshock (the OG) also looks and plays great. I've put in a few hours now, and my hands feel very comfortable holding the device, no fatigue. The sticks originally felt a little high on the device for my personal tastes, but you get used to it pretty quickly. I'm still not used to reaching for the dpad to the left instead of down/right of the left sick though. That's going to take some time to get used to.
Is there any game that makes use of the two touchpads? Kind of a headscratcher to use up so much real estate for things that will never be used.
That and the process to get the on-screen keyboard to pop up are my only two complaints. I wish it was a bit more like Android OS in that the keyboard automatically pops up when you click on a type-friendly text field.
Still, this is my favorite purchase since my OLED TV. I can see myself putting a lot of time in with this thing, particularly on older games for a replay and for smaller games that I never even installed on my main gaming rig.
*edit*
Battery life seems to be not so great too. But, knowing what I'm playing on such a tiny device, I can hardly fault that too much. Still, it's going to limit its usability while "portable" and not plugged in. Also, as expected, it charges really slowly on most USB-C chargers that aren't the OEM one. I've tried 3 different chargers now just to see the difference.