It's alright. I'm a total fucking sucker for mission based gameplay, so I'll probably pick it up. But the game feels WAY too loose. None of the objects have any real heft, picking up a car was like picking up a trash can and I could only throw them about the same distance.
The camera is a little wonky, the lock-on needs work and melee is just way too, well, loose. It's so easy to try and kick a bad guy and send a car a mile down the road instead. This will actually make a GREAT long rental from GameFly or something, but it lacks the feel and character of GTA that makes it so replayable. And the weapons are pretty same-y. But the super cop feel is nice, I guess. Jumping from rooftop to rooftop and crashing a criminal front is awfully exciting.
And the ZOMG SECRET AGENT TUNNEL at the start is great. But, well. We're looking at a well-earned C+ here.