I agree. While I'm not happy with the way the Unity switch was handled, this is definitely not a "KDE4" type disaster where entire apps were ported over with new bugs, and half the feature-set of the KDE3 versions.

I've been running Ubuntu 11.04 (first release with Unity) for a while as a workstation desktop, and while there are warts that I'm sure are dealt with in 11.10 and 12.04, it's mostly annoyances. Nothing that has seriously impacted my productivity.