LM17 Qiana + XFCE works perfectly, no issues.
LM16 Petra + XFCE works perfectly, no issues to report.
LM15 Olivia + Cinnamon works perfectly, no issues to report.
LM14 Nadia + Cinnamon had an upstream bug with network printing.
LM13 Maya + Cinnamon Desktop running perfectly following August'12 updates.
LM12 (Gnome3) disaster. Regresssed back to LM11
LM11 (Gnome2) Everything worked straight out of the box.