One thing that makes the game great for me is the spectacular call outs. If you are playing in an arcade or bar chances are you won't hear most of them.
At home I have turned up the volume for just the call outs and lowered the music just a tad. Then on top of that I have a headphone jack installed and the game is amazing. This game really benefits from being able to hear the two characters laugh at you and tell you what to shoot for.
And oh yea, the rules are so deep you will be learning the game for months.