I think it’s a nice upgrade from the Switch 1 the build quality is a lot better and the screen is a huge upgrade. Performance is better too. I’ve never seen the OLED Switch 1 so I can’t speak for that but I think the upgrade would be less noticeable.

I mostly used my Switch 1 to play indie games and Nintendo Exclusives like BOTW and TOTK.

On Switch 1 both Zeldas, and Hades 1 would all drop frames at certain points. For Balatro on Switch 1 I had to disable everything in the visuals settings because the game would chug when you started scoring high. I don’t have these problems on Switch 2.

Lastly, IMO if you can comfortably afford it and want one you should get one now before hardware prices increase even more. Nintendo is eventually going to stop supporting Switch 1 and there’s some good games like Pokopia that are only Switch 2 already.