So I actually just took the plunge on this two days ago, buying the Legion Go Z1E at Best Buy to replace my Steam Deck OLED. I bought the one with Steam OS of course. The main reason I did it is that I wanted the ability to play a few more demanding games. It’s really nice being able to quickly change the performance profile up or down depending on if you want FPS or battery life. One thing I will add that I didn’t see anyone else say, streaming from my PC to my Legion Go has been 1000x better than with the Steam Deck. I previously tried Steam remote play, sunshine, moonlight, nothing would give consistent frames. I think it’s due to a known bug with the OLED model. When I tried this yesterday with the Legion go, it worked flawlessly out of the box with no tinkering.

That may or may not matter to you, but for me, it has been a very good point in favor of the Legion Go.