It's growing on me
I've been seeing a lot of discussion on Unity and Gnome shell for that matter, I've been running 11.04 with Unity since the second alpha, yes there have been issues, but for the most part it's been fine, I'm still undecided whether I'll keep Unity in favour of my usual global menu and awn (or cairo dock)
I can't say I've run into some of the issues other have, I am able to drag an icon from applications to the launcher.
For the most part I like Unity, and to some extent Gnome shell, I haven't recently tried Gnome shell, mainly because I'm too lazy to install it.
You don't have to use it though, you can easily disable it from the compiz settings manager, you can also select various options at log in.
Basically my point is that you don't have to use it if it isn't for you, I for one like 11.04 (even with Unity) my only issue at present is a driver for my graphics tablet apart from that even running the alpha's has been pretty smooth.