Here is stuff that got destroyed in terms of functionality.
adding a song to a playlist is now a lot more difficult and requires moving a lot more bc it opens up a HUGE window instead of the little menu
The volume slider is not live, its drag and drop so you can't hear the effect of the volume change in real time
Everything is HUGE and they just seem to love all the dead space and tell me pretty much nothing about whats going on.
It's atrocious. I've used it for about 10 minutes and I already despise it with a burning passion. These things I mentioned are just the ones that are just immediately obvious because I USE THEM FREQUENTLY