Funny, but waaay too short.
Sound: Great. All the voice actors from the show (with the notable exception of Stephen Colbert) reprise their roles, and make this a very funny game. All the characters sound the way they should, and it's very nice. The music is alright, nothing special.
Graphics: Just ok. It looks almost exactly like the show, although it's a bit less polished. Either way, they're alright.
Gameplay: A standard point/click game with attorneys and places to go and cases to solve. Nothing too special, but I had a good bit of fun playing.
Overall: Rent it. Chances are you'll be finished very quickly, so buying it probably isn't the best option, but what little time you'll get out of this game will be good.