I played a demo this game at PAX and I have to say I was disappointed. The game definitely looks nice but it felt quite clunky when playing it. Though the gameplay borrows from a number of tried and true sources somehow the implementation just didn't work as well as it should have. Also it seems pretty heavily dependent on your AI-controlled teammates and the AI was pretty bad. They would occasionally do things that just seemed completely inexplicable to me.
Of course I think the demo I played was the same one they had at E3 so maybe things have improved since then. But what I played left a sour taste in my mouth.