I had fun playing this game. Finished it in about half an hour - 40 minutes and did not notice the passing of time (which is a totally positive thing!).

Learning curve was a bit steep: I dropped the game at first because it was really TOO dark. In a visual sense. Pitch black. Then I got back to the game, slowly understood how to use the PULSE and found a way to navigate the environment. Let's say I put my trust into the game and he did not let me down. I personally like this kind of puzzle games where there is no real danger, just a general sense of uneasiness (and the plushies' shop with all those nasty critters looking at me with their red eyes really startled me at first!).