Since I'm posting here to agree with some of the OPs points, I'll add a copy of my previous post:
Good:
1. Hate modal windows. Send/receive on tabs (or anywhere that's not a freaking modal window) is an improvement.
2. Everything I didn't complain about.
Good-impaired:
1. The old icon/logo looked better.
2. Don't see the point of the "overview" tab. Everything presented there could (and should) be available in the transactions tab instead.
3. Your total balance should be available on every tab and in the same location (top left IMO).
4. Not a fan of tooltip-heavy software.
5. Should be able to see the number of confirmations without hovering.
6. Should be able to see connections and block total without hovering.
7. Any way to disable the -Transaction Received- tray message?
8. "Minimize to tray instead of taskbar" doesn't seem to do anything. When it's on, the program (when minimized) "disappears" from the taskbar and then instantly reappears there again.
9. I think it would be more convenient if all the buttons were in the same general area. Right now three of the tabs have buttons at the bottom of the window. Seems like a minor issue, but things like that can get annoying pretty quickly (especially if you run the GUI client maximized).
10. Splash image looks a bit cheesy.
Nice list, constructive presentation.