Wow, that looks terrible! Thanks for sharing the preview. I really dislike vertical UI elements, and these are much worse than they were before- almost entirely

Wow, that looks terrible! Thanks for sharing the preview. I really dislike vertical UI elements, and these are much worse than they were before- almost entirely EMPTY. These new vertical ribbons are at least twice as large as the old ones, eating up valuable screen real estate and managing to be less usable and discoverable in the process. I really hope they U-turn on that!