If you can find a group of seven players with lots of time (4-10 hours), this game can be fantastic. Don't set out thinking it's a game about lying, because it's not, it's a game about -diplomacy-. Get others to do what you want them to do, and get them to think it's their idea. Do everything you can to maintain honesty, and you'll do better than others who lie.
Best negotiation game around.