Graphics look pretty good for a TV show cash in.
I haven't seen any reviews of the PC version but the X360 version has a 74% average at game rankings:
Very surprising. Hopefully its actually worth playing. The show is cool and the game appears to have captured the atmosphere pretty well.
EDIT: This review (X360) doesn't sound too good IMO. http://www.atomicgamer.com/article.php?id=532
They didn't have much good to say considering the score of 74%. Sounds more like a 60% game to me. I wonder if they will release a demo.