I have played three consecutive fewshots with Green Dawn Mall and had a good time. First my players played the classic scenario of teenagers looking for their friend, then they played a group of journalists on the tracks of those teenagers. Finally they were so familiar with the weirdness of the mall, I let them play Mannequins leading a revolution in the mall.
If you and your group like weirdness and can build an interesting story with a rules-light game, you should give it a shot.