It'd be hard to classify something with this much emotional resonance, honesty, and maturity as "bad". However, it is a challenging game - the sort that you give a reserved recommendation, a real "it has some problems but I liked it" situation. If you're looking for a smooth, polished experience, then yes, you might want to leave this one sleeping with the fishes. However, if you're in the mood for a slow, moody mafia yarn with an excellent atmosphere and a compelling story, then Mafia's a decent contender.