It's like a modern version of the worst parts of Vista.

The UI is a clunky mess. I had to spend a week to make it about usable. Every menu is now a submenu of a new new menu, so you often have to click 3-4 times for stuff you'd have in a top-level right click menu not so long ago. Now they've been doing that for a while now, so some settings are getting quite deep at this point. The whole thing feels unresponsive and sluggish.