As someone who has actively hated most UI updates in the last 5 or so years, and not be silent about that...
I actually really like this one. It does just about everything better, and most critically, it does what many other UI updates don't: it gives the user a substantial number of ways to adjust it to their preferences.
So that's a solid "well done" from me.
That being said...the scaling is kinda wonky at least for me. It seems like a bug, and I'm assuming its going to get worked on, but as of right now, its I'm having to do a lot of zooming and unzooming of the page, and its getting bit frustrating.