I bought a new second box at the weekend with no O/S, so thought I'd give 11.04 a go on a complete clean install. There are still major problems with this release.
It took 2 installs to get the Unity desktop - the first told me my Nvidia nForce 9200 card wasn't up to running it (hardly a cutting edge card, but 3d capable). The second install brought up Unity, and told me additional drivers were available. Downloaded the Nvidia drivers, but now it tells me they are "activated but not in use" - therefore no advanced visual effects available.
The biggest annoyance is the inability to shut down, restart, suspend or hibernate. Just hangs on a purple screen. All end with the power button having to be held. This whether initiated through GUI or Terminal. Happened also when I just booted off the cd without installing.
Only plus over other distros - wireless router picked up out of the box.
Funnily enough, not a lot on Google for these bugs, but I really hope these can be sorted before Ultimate Edition 3.0 is released. In the meantime, it's tried, tested and trusted, Ultimate Edition 2.9!