I liked it. Beautiful visuals of a utopian urban landscape. But to be honest, graphics and all that aside, I think you'd be hard pressed to find a game that matched Jet Set Radio Future for that kind of awesomeness lol.
Anyways, parkour is for being outside and enjoying. It's just not the same when you play it on your playstation.
Good concept and idea, but it could have done with being a complete citywide game with more to do. Parkour is about freedom of movement and choosing whatever path you want, not choosing from the limited array in a set stage.
I'd give it a 6.5/10