For making such a big deal about resolving the multiple desktop and full-screen issues, Mavericks feels a little disappointing. Switching between full-screen windows is still accompanied by the painfully slow animation which still can't be disabled.

Trackpad scroll speed on my 13" MBA is also noticeably slower without significant load on the machine. This seems deliberate, but it's a move in the wrong direction for people that already have the trackpad sensitivity maxed out.