Four hours is all I can really take of this game. Story seems decent enough. Voice acting and dialog is so cheesy and goofy that it ends up being great. Sadly the part where you play the game just isn't very good. A clumsy control scheme, awkward camera angle, and a lack of feed back during combat, makes for a rather hollow experience.
If all your looking for is a 6-8 hour by the book shooter, you'll be pleased. The visceral excitement of the first games gun play and melee combat is somewhat lost in the sequel. Not a bad Michael Bay-esque romp - just not a worthy sequel to the original. The DLC is nice, and at about 2 hours can fill a afternoon somewhere. For the price its a decent purchase.