From what I've seen, mate (the Gnome 2 fork) looks decent too. After the disaster that was Gnome 3 I've went away from full DEs to a simple but great tiling window manager (awesome, that's the name of it as well as the description). Since 99% of my use cases really involve just a terminal or firefox that's probably as good as it gets for me :) No bloat, just great usability without ever needing the mouse - which is especially great on a laptop since touchpads have always been suboptimal pointing devices.