The new UI and home screen is great. Tab management is okay. Just a few problems:
Whenever I visit Facebook, the browser always renders the minimal Facebook UI, instead of the standard one for smartphones, regardless of the Speed Mode being on or off.
The new UI is nice, yes, but the address bar is a bit too minimized, so it's a bit hard for fat-fingered people to tap it.
And also, please update the Bing and Outlook icons on the home screen. Their current icons are just ugly and outdated. Other than that, good browser.