If you've been using unity, you've already been using most of the gnome stack, the main difference being a different shell and window manager on top. I do slig

If you've been using unity, you've already been using most of the gnome stack, the main difference being a different shell and window manager on top. I do slightly prefer unity to gnome (mainly because, in my experience, unity/compiz is has far smoother performance/animations than gnome shell), but gnome is pretty good these days. Also, it's worth mentioning that the first release of unity was every bit as much of a disaster as gnome 3 was (I remember unity in 11.04, it was buggy and the performance was horrific)