I don't think it's a total improvement, but it takes about a day or two to get used to. Feels like a well tested sidestep to just not be stuck with such an old UI and not turn off new comers.
Anything specific you like besides changing icons that didn't need to be changed (to worse icons nonetheless), removing text that didn't need to be removed and lower information density in general?
I tried it recently and something I found immediately lacking is the breadcrumbs view. Without it I can't look at all the other code in the same package/folder/whatever.
Oh it's just that it's been moved! Thank you for that. I was so used to the old UI I was completely blind to the idea it might have been elsewhere. Well, okay, I've switched my PyCharm to the new one so I'll get some experience. Leave my IntelliJ and Clion on old so I can get work done heh.