I may not be good for an unbiased opinion... :look
Seeing as I'm running a game now, playing the other currently active game going on right now, and have a game to run in the waiting list...
So, long story short, yes, I think it's worth learning. There is also a class about it in the classroom...
It is an online game that we play here. Long story short there is a good team and a mafia team and the innocents are trying to lynch the mafia during the 'day' phases and the mafia are trying to kill enough innocents that their numbers are even during the 'night' phases.