I got a steam deck pretty early on, I use it daily now since moving since my PC isn't totally hooked up and it is pretty great! It plays everything that I want to play, and the framerate dips on my TV aren't bad enough in the games that usually dip like spiderman, but in Guilty Gear Strive, I had to install the potato mod because frame dips in that game are pretty awful.

All in all I'd rate a solid 8-9/10 and would recommend it to anyone who was interested in it, just make sure you don't play any MMO's that use EAC or something dumb like that because proton isn't perfect and those games might only run on windows.