I've been using Ubuntu for a year or two now but recently made the mistake of "upgrading" from 10.10 to 11.10. Compared to Unity, Gnome 3.2 is a dream. But it won't run on my machine on Ubuntu 11.10 without all sorts of rendering issues.
Fedora 16 Live CD works fine, so I'm probably going to switch back to Fedora - but compared to Ubuntu, isn't it ugly? The default theme is cold and metallic and font rendering is awful - thin, spindly pixellated text with none of that nice antialiasing and subpixel rendering that Windows and Ubuntu users are used to. It's nearly enough to put me off the switch.