I played it a few times in university (pretty much the only period of life where a group of friends can get together and sink a whole day and night into stuff like this). It's hard to describe this game; as you get going on a round with friends, it's intensily exciting and fun, but as soon as you're done, you never wanna play again (then that feeling fades). Yet somehow, my friends and I to this day refer to things that happened in rounds of this game 15-20 years ago! (Especially that time one of the group was to catch a ride home with another, until the passenger backstabbed the driver in the endgame and had to walk home at 4 am.)
I also tried playing it online with randoms a few times, thinking it would be suitable for play-by-mail style play instead of losing a whole day. Didn't like it at all. The unique fun comes from backstabbing your friends.
Truly a magnificent game, but also one that I'm glad is firmly behind me in a different era of my life. Like a lot of things from uni ;)