I had a VERY hard time sitting through this film. Unless you really are very pro-adultery and like to hear people ENDLESSLY talking about their sexual exploits, I can't see how you could enjoy this film. Geez--most of the main characters behaved like rutting weasels and their bragging about their MANY infidelities grew tiresome. About the only element of this I appreciated was the DISGUSTING scene where the one character was urinating and blood was splattering everywhere because he'd picked up an STD---BIG SURPRISE!?! Hmm.
If you want a GOOD film, watch the sequel, Barbarian Invasions. Despite the general unlikable nature of many of the characters, the sequel is VERY involving and more realistic--well worth your time.