Every game is a mixed bag, I don't see how its like Bulletstorm though - but I'm obviously in a position of not being able to actually call that, I guess it depends what people focus upon. I didn't like Bulletstorm, I played the game, and finished it, but I didn't exactly enjoy the experience, I played it a few weeks after I'd finished working on Bodycount, and not at any point did I think the games had anything in common, that doesn't mean its not there it meant I didn't see it.
Certainly not one for the NeoGAF crowd, they certainly don't like the game at all. Interesting on another forum (the Chaos Engine), most of the complaints are about the FOV shifting etc... The word as I can see it now is its being recieved as mediocre. The initial 2010 E3 response gave me the impression that it wasn't a game the public wanted.
Obsidianite feedback is welcome too, the NeoGAF folks aren't exactly being constructive.