* hibernate when closing lid
* cpu/mem/network visualization in top/bottom bar
* clean theme without much fiddling
* mute/unmute via hardware button
And the rest I forgot. I can live with some issues, but it compounds on the less popular DEs.
All those issue apply to Awesome as well. DE is much more than managing windows. A long time ago, I used various tiling window managers, but always ran the various Gnome background services as well.