Wow. That's all that really needs to be said about this game. I really enjoyed it, the story is well written (apart from a few grammar mistakes, but nothing that detracted me from enjoying it). The visuals are very well done and the accompanying music and sounds are great.
I went into the game pretty much blind and played as if I was the one actually in the situation (as I do most games). I'm very pleased with the outcome I got, the game took me by surprise a few times and I began to question what might be real and what might not be in the game.
At the end of the day, it's an excellent visual novel with an interesting story. It presents you with an unknown environment and asks you to make some pretty difficult choices. It was a very good game, and I'm happy I got the chance to experience it.
Also, I hope you don't mind but I recorded a let's play of the game.
Cheers and best wishes to you!