This novel is a great example of one that really lived up to the hype! It was spooky, claustrophobic, tense, and confusing, and everything mixed well together to present one wild story. The included documents at the end of each chapter sometimes didn't make much sense while you were in the thick of things, but once you got to the end of the story, all the pieces fell together nicely. 

Speaking about the end of this story: woah! The conclusion was tense and violent and the final chapter helped set the stage for the MC's future, but the final page and subsequent document really helped the theory that I had formed during the story come into complete focus and it was a great ending. 

Very cool concept and it was executed very well!