You'll love it or hate it. Comedy, violence, big explosions, lots of fun.
Personally, I have never been a huge fan of sandbox games, but I did enjoy this one. Usually, I don't enjoy the graphics much on sandbox titles, and they seem to have more bugs or problems than other styles of games.
The graphics on this game, however, are top of the line. Pandemic proves again that they have the chops to turn out amazing graphics that will blow the minds of players. Some of the effects could look a bit better, but hey...that's coming from a graphics junkie who is a bit nitpicky.
I set this one to "Rent it First" because I think some players will think it is "just another sandbox game" while some players will think "wow, this does some things that other sandbox games don't do so well at."
Personally, the comic relief is one of the bigger high points of this game. There are plenty of humorous lines delivered by characters, and that increases the fun a lot for me, especially in cooperative multiplayer.