Not impressed.
Having gotten to level 12, I think I'm done with this. It was interesting initially, but what seemed like it might at first be a creepy, atmospheric game is more or less a straightforward "get from point a to point b" given a difficulty bump not by the game itself, but by camera angles and controls.
I like the graphics, or at least what they're trying to do, and the initial feel is excellent. But I feel more and more disappointed as the game wears on. Keep it up, but I don't think I'm going to try this again.