The Air's display is a little worse for colors I'd say compared to the 16", but at the same time, I see less blurring with scrolling which is a big plus. I'm still trying to get used to the smaller size again, but if anything it's going to get me back to my desk more often and actually using my external monitor again, instead of doing everything on the built in monitor all the time.
It's super fast, probably does feel faster compared to the 16". And I have half the RAM now (8 GB instead of 16) and don't feel a difference. Maybe I was just never really doing anything RAM intensive in the first place lol.