I rather like it. Very simple objective, and while the only reason to come back and play is to beat your old (or friends') scores, it was enough to keep me playing.
The music and the narrator are both nice. Nothing special, but as long as it's not annoying, I'm alright with it.
The concept of the game where the narrator tells you what to expect is rather intriguing and unique. Doesn't hurt that I have read the story and enjoyed it.
Only disappointment is how short it was. I didn't expect them to do the game for the whole story, but only eleven and a half minutes? Could be longer. Also disappointed that I beat it, yet am quite far away from that coveted #1 spot on the leaderboards. I guess you get more points for the amount of lives you have left at the end? Either way, I think I'm done with it.