The "free-form" approach to the game (ie. go anywhere...no corridor FPS) is apparently misleading. There are invisible walls that prevent you from travelling where you're not suppsed too and you are "funnelled" into a corridor shooter without realizing it. But the BIG problem is the game's length, or more accurately, lack of. There are six levels that all reviews I've read place the game at 7-8 hours in length. I find that totally unacceptable in a big title, highly priced launch. I think it may be a big sticking point for many would-be buyers. It is also very system hungry, not just GPU but CPU.