The thing that bugs me about Mao... I don't trust the other people I'm playing with to enforce all the rules properly, particularly when their are multiple rules to be processed for one card. A sane execution of Mao would involve a non-player taking the role of arbiter. Not to enforce rules but be available for appeal and reference.

But I prefer Bartok regardless. After you play that for 30 rounds or so things get seriously complicated.