I own the game, but have not yet played it. The BGG page claims it plays in 180 minutes, but the box states 90-120 minutes. Which is closer to reality for a 2 player game using the designer's rules posted to BGG, not the variant in the rulebook? I'd be curious to learn how long 2 player games have run for those learning, and what that reduced to eventually.
See the person next to you? Kill! Kill!!! KILLL!!!!
I'm your baby! Can you feel it?
Some of the rules are a bit demanding and you need a few goes to really get them, furthermore, they are not the kind of rules that you can clearly remember if you haven't played in a while.
So if you play only now and then, I can see how it takes you to 180 minutes, however, if you keep playing several times in a month, you should easily play in about an hour if only 2 players play the game.