I enjoyed it. I don't think people realise how close that game was to the wolves being completely screwed. The humans missed a chance to end the game, and left me with no choice but go along with "The Plan" in order to secure personal victory.
I'd quite like to see a game with an ambivalent faction, or a faction with an alternative secondary victory condition. This faction wouldn't care which side won as long as their own objectives were achieved (which might harm either "main" faction).
I'm not sure how that could work though, and it might require more players to get some good play with.