Heh, I was impressed too, until I upgraded my home PC as well. 11.04 didn’t seem to like my ATI graphics card, so everything’s now super slow. My work PC works like a charm with Nvidia, although I’m now getting tired of this Unity panel and the Mac OS-style titlebar, but can’t get rid of it because I promised myself I’ll give it a go for a couple of weeks.
Did somebody above say Fedora? Screw Fedora, if you don’t like Unity get CCSM and disable the Unity plugin, voila! 😉