I have switched to Linux Mint 11 Katya about a week ago and I’m completely satisfied. It’s really like coming home from the alien Unity. The interface is very usual and intuitive, no problems with Skype, screensavers etc. (See my post “Ubuntu 11.10 – First Problems“).
I hope that the upcoming Linux Mint 12 “Lisa” will keep the things that useful inspite of Gnome 3 being introduced in this release. They promise to achieve it with “MSGE” (Mint Gnome Shell Extensions):
“MGSE” (Mint Gnome Shell Extensions) is a desktop layer on top of Gnome 3 that makes it possible for you to use Gnome 3 in a traditional way. You can disable all components within MGSE to get a pure Gnome 3 experience, or you can enable all of them to get a Gnome 3 desktop that is similar to what you’ve been using before. Of course you can also pick and only enable the components you like to design your own desktop.
The complete list of new features in Mint Lisa is available on official blog.