We think this game is a lot of fun and works well at parties. It's a verbal game, so it gets people interacting with each other. And even though some are turned-off by the challenge of it, even people that simply end up watching seem to have fun.
It's also nice that it is simple and straightforward - people pick up on it quickly. And like most good party games, the rules leave open some grey areas to argue over. :)
[less]