It makes me happy to know that someone here likes Unity, because I think it is horrible. But then again, my preferred GUI for Linux is Ratpoison and some Xterms.
My preferred UI is the Awesome WM so I know how you feel but I think Unity is going down the right road for several reasons:
+ Composited desktop means a X11 artifact free experience.
+ Keyboard shortcuts for most tasks
+ Unified experience for different apps/programs
+ The windows key is no longer a dead key
- Custom key bindings are hard
Back in 11.04 I absolutely hated unity, but now Stockholm syndrome is setting in. When I go back to 'regular' desktops I find that I have to make a conscious effort to manage my windows. I now get annoyed if I have to move windows around.
Unity appears to have altered my behaviour and I think the change is pretty nice.