Wow, just finished the game and I have to say I was very impressed. I was a little apprehensive during the first couple of hours of the game but then it really gripped me. I can't recal any other games that have left me thinking about them after I put the controller down like this one did. Also, I think it's the first time a game has genuinely made me feel tense and nervous about what will happen to the characters whilst I'm playing and even though the decisions you make in some of the scenes may not affect the overall story, actually making some of those decisions left a bigger impact on me than most other gameplay mechanics I've come across.
It wasn't perfect with some minor glitches, occasionally awkward QTE (usually involving tilting the controller) and the camera could have been a little better at times but overall they are minor points. Whether this is a game or an 'interactive movie' I'd love to see moe of the like in the future!