About what I'd expect (and so should everyone else)
Unity is an attempt to shift the desktop paradigm in exactly the same way as KDE 4x, Gnome 3, OS X and, yes, Vista. And for a <1.0 release (as of today), it is in roughly the same shape. These are early days. Remember the disastrous first release of KDE 4? The back-peddling claim that it wasn't meant to be a public release? Well, it has matured nicely (but I still don't like it). The same could be said of OS X (but I still don't like it) and Vista. Umm, wait, Vista is no more. Windows 7 is pretty good, though no paradigm shift, more of an XP patch.
I find Unity to be disturbingly similar to the first release of OS X so, perhaps not a paradigm shift, but more of a regression. That's ok, they've tried something else which is at least a move away from the same old, same old Gnome. It's also in far better shape than Gnome 3, which at this point won't even run on any of my hardware. I'd call that a non-starter. And Unity will run in VirtualBox. Come on you Gnome slacktards, get with the program. I sure as f*ck am not going to waste my time installing your frankenstein monster to bare metal if it can't even be safely virtualized first.
Unity is actually not too terrible, and easy enough to figure out where stuff is by poking around a bit. I'd like it better if it were easier to customize. It is definitely geared towards a touch screen, and that means tablet. Fair enough. I don't have a tablet, nor do I want one. For development use, I'll stick with my desktop pc running Gnome 2 on FC14, thank you very much.
I'd love to play around with Gnome 3. It looks interesting. Someone wake me up when they finally get it to work.