I personally love Gnome3 on Fedora. It took me about a week to adjust my mindset though -- I did that over a Xmas break. It did help that I read the release notes first (so I was not surprised at the major change) and went through the tutorial the developers provided. An interesting exercise re-examining and critiquing old workflows and exploring alternatives. It works really well on the smallish laptop that I use while commuting and which I plug into a couple of monitors when I get to work. Its great the way it frees up screen real estate and encourages me to focus on "what I am doing" rather than distracting me with "things I might want to do". Reading the release notes before installing an OS is a really good idea. Fedora and RedHat do a really good job with their release notes.