For almost 1+ year I've considered XFCE to be stable and well-optimized. And, well, it was. As minimalist, I have to note, there were two bugs annoyed me from time to time. The first one seems to appeared in 4.6.1 or 2, it was an issue with logging you out anyway once you pressed "Exit", even if you click "Cancel" later on.
The second one was not in xfce itself but in Thunar file manager, when copying address from bar, it copies as file:/// URL + newline, which gave me...
