I honestly didn't enjoy this game. The gameplay is very linear and the detailed world around you is mostly eye-candy. You walk on a straight and rigid path for most of the game and every gameplay will probably be identical to each other. I didn't finish it, so I can't speak for sure, but I doubt it has replayability whatsoever.
Surely it has a great atmosphere and an entailing story, yet its scarce playability makes it boring after a very short time, at least for me. This game is good for those who enjoy the idea of playing a barely interactive movie and like to solve moderately easy puzzles. That's not what I look for in a video-game, albeit I can see why people might like it. It's just not my cup of tea.