Pretty but shallow. Lovely visuals and sound, but it gains nothing from being in a game format. The story is evocative but never completely gels. I am told that there are semi-random elements, which would be an advantage of the game format except nothing makes that apparent and how many people want to walk through the game again in the chance that the verbal part will vary randomly? Also a reason why the story may not gel; it must support multiple, conflicting stories at once.
Great atmosphere, marginally worth the time (~hour), certainly not worth the price. You would be happier watching someone else play through the game, which is the same effect except for holding down the W key.