Dean and Robbie played Presidents of the Apocalypse with me last night.
Dean was Emperor Norton, Robbie was Elvis Presley. They played through my adventure Assault on Castle Hasselhoff, and of course threw a few unexpected curves into it (who knew that Minnie Pearl would be found hiding in a bunker with Arnold Schwarzenegger and Maria Shriver?), but it went over well. The system is basically solid, I think the main thing I need to adjust is the distribution of attacks with and without special bonuses. The "damage plus stun opponent" powers, which they several of, were maybe overpowered.
I'll make a few adjustments and play it again soon.
GURPS - GM Screen
1 hour ago