I have the new steam deck thanks to my friend buying it and shipping it to the Netherlands for me since it's not sold here yet. I quite like it. I guess if you are coming from the old one then there's probably not that many updates, but so far it seems to work as advertised. I really enjoy having access to most of my steam catalog. I think the largest issue is the battery. It doesn't last that long, however, I don't think there's anywhere to go where you don't have a power connector. Even on planes they have them. I played stray, the game where you are a cat, and you can tell with heavier hardware the game would be absolutely beautiful but in the steam deck yeah maybe the individual cat hairs aren't so perfect. But that's not really that big of a deal. I think the biggest issue is that I cannot seem to get used to the touch pad for mouse based games. I think I just need to practice.
This is the kind of review that's pointless. Valve didn't market the new version as some major change or major update. It was quite the opposite, they were were quite clear that the real change was the OLED screen. Yes there are lots of other small tweaks here and there, and some of the internals are optimized in ways that mostly don't impact the users experience.
So, anyone who bought this and was underwhelmed by it, is too ignorant of a person to publish a fair review because they clearly didn't read Valve's marketing material. I have the original and I ordered the OLED limited edition the day it was released. It was exactly as I expected it to be based on the promotional materials that were provided. I was not disappointed or underwhelmed in any way because I have the ability to read and comprehend and Valve's marketing department was very straightforward about what I was getting.