I just installed the heron on an external drive and I like it. It is fast, clean and easy so far. Running noticeably faster than my 7.10 installation, although it isn't really fair to compare a clean install to an old one.
My home computer is rock-solid with Feisty, but locks up within 10 minutes of booting Hardy. And I'm not the only one. Browsing the Ubuntu general help forum gives me the impression that Ubuntu is having some growing pains. The questions and problems posted just yesterday go back for 20 pages. Not an auspicious start for what is supposed to be a Long Term Service release. [ May 02, 2008: Message edited by: Joe Ess ]
I recently just upgraded my Ubuntu from 7.10 to 8.04. I don't agree that Ubuntu 8.04 is faster than its previous releases. To me, Ubuntu 7.10 is still faster than Ubuntu 8.04, especially when Compiz is turned on. But overall, I'm quite satisfied with Ubuntu 8.04
SCJP 5.0, SCWCD 1.4, SCBCD 1.3, SCDJWS 1.4