I tried but Linux but it's just not working out for me. There's too many bugs and it's a struggle to get almost anything to work properly. Maybe next year; it's a lot better now than it ever was!
Right now I'm running vanilla Ubuntu (Unity), and it's still buggy and crashes every so often. It's not so much that it will make me switch back to Windows, but I do want to try a different distro soon.
Unfortunately most people with GNOME are horribly out of date. Most of the apps are only barely usable now. For example, stable GNOME Calendar can't do CalDAV but the next version (called California) can. There's a long list of problems, maybe I'll write them up at some point. Still keen to switch to Linux but maybe it'll be next year