Linus Torvalds chimed in with "starting to look almost usable", and John Goerzen is next: "I have probably never written "OMG WTF?!" but dist-upgrade got me Gnome 3 today, and it seems fitting.".
Update: And here is Patrick Schönfeld explaining "Why Gnome3 sucks (for me)".
Update 2: Tanguy Ortolo on "GNOME 3 killing interface consistency".