I see what you say about Edge, I guess I just question how much they actually know about games. They certainly like to think they're top journalists, and maybe they are, but some of their scores are downright odd. That though is totally subjective so thinking about it, no-one is right or wrong in that sense.
I was baffled how they could give FIFA11 9/10 and yet give PES2011 either a 6 or 7/10, Killzone 3 only 7/10, or Dead Island 3/10 yet give MW2 an 8. Again, all subjective, but given they try to review games in a way that purports to be almost 'higher brow', they still reward some of the biggest yet crappiest games when they come out.
Back on topic I don't think this game will be worth £40, I'll happily pay a cheaper price when it comes down, or second hand on Amazon. Game prices seem to plummet online these days just weeks after they come out.