Well, the reviews just went up at IGN and damn, they're pretty impressive. They went down like this:
USA – 9.2/10
UK – 9.0/10
AUS – 8.6/10
So yeah, even an 8.6 is pretty darn good so this is looking more and more like a must-buy. I love super-hero games but I'm usually not a big fan of open-world sandbox-type games so I was on the fence with this one for a long time. I just hope Sony releases a demo prior to the game release so I can make a decision for sure and pre-order it somewhere.