I adore the Steam Deck so much and been loving it ever since Kath got it for me. I think the most mind boggling thing about it for me is that it shares a lot of the same system specs as my old rig before I upgraded, so it's been quite the trip being able to play games like Batman: Arkham Knight, Divinity Original Sin II, Skyrim modded, Cyberpunk 2077, WWE 2K22, and so on all in the palm of my hands. But then at the same time, it's like... of course it can run those.
It's when I chose to go further back and play the games that were never intended to be played nor envisioned in a portable format that the magic of this thing really started to click. Games like Fallout 3, Oblivion, Mirror's Edge, Yakuza series, Planescape Torment, Mass Effect Trilogy, The Sims 2 etc. that it's like ... holy ****, this is insane. Don't even get me started on the emulation side of it, playing stuff like WWF No Mercy, WWE Here Comes the Pain, the classic Tekken and Ridge Racer games and the litany of PS1, PS2, SNES, Genesis, and Dreamcast games on it has been pretty damn awesome. It's made me love games again in a way that I haven't in a really long time.
This is the other part of it that I love the most, the cloud save syncing and the quick resume feature when putting it to sleep. It's awesome to play something like Final Fantasy VII Remake on my rig, save, then pick up where I left off on the Deck and then if something calls for my attention I can just simply put system to sleep then easily resume later and not miss anything.