A wonderfully atmospheric experience. Despite the clear Analogue/Hate Plus inspiration, it still manages to put its own spin on the formula, with the story being delivered in a much more linear fashion, but still leaving enough for you to sit on and ponder about it.
The visuals are simple, yet effective. The soundtrack? Fits so well that you'll only notice how much of a difference it made when the game goes silent on you.
Hell, it's even got voice acting, and when the game asks you to sit there and listen to the rants and rambles of very damaged girls and all you can do is let your mind race as you try to fit the puzzle pieces together in your head, that's how you know you're playing one good-ass game.
It's fun, it's engaging, it's fascinating. Best experienced fully blind if you can, and even better if you have a way to take notes while playing.