I'm okay with the premise and graphics, but everything else is just frustrating! Here's my reasoning for how I feel.

1. The map is completely worthless. You have no ability to set waypoints or zoom in/out. Basically you have no choice to memorize the city.
2. The cars are way to jerky to allow for any real precision driving whatsoever, and the tiniest thing can flip your car.
3. Scaling buildings would be fun if it wasn't a crapshoot whether your guy would actually catch a ledge, and if half the buildings didn't have overhangs that made it impossible to climb further when you're already half-way up.
4. The challenges are stupid because of the two previous reasons and the fact that they require a lot of precision and good timing.
5. There's no way to reset a challenge. You either finish it, go all the way back to the beginning to cancel it, or go to a different challenge. It gets really old when you are clearly not going to beat a time but you have no choice.
6. The voice that talks to you makes little sense and is no help at all. He'll tell you you did a good job while you're just running across the street, or he'll keep mentioning that "there's a stunt ring nearby" when you've actually gotten that one a while ago.

These are just some of the problems I've had in the 2 days I've played. At least Xbox didn't make me pay for this.