I'm really disappointed with the new iTunes.
They seem to be making it more difficult to navigate the app. Or I'm just getting old. But nevermind that. Other frustrating bugs include: CMD+SHIFT+M switches to the mini-player view, but it frequently seems to do so by creating a new window and setting that window the mini-player. So know I have two iTunes windows open the full viewer and the mini-player. And when scrolling through my library I see significant repaint bugs where text is doubled and overlapping and impossible to read, but which get's repainted on mouseover. Not to mention the way installing the new version seemed to wipe out my view and Genius settings so I had to re-tweak to my satisfaction.
It just feels like sloppy QA.