None of the puzzles are particularly difficult, and the game itself is only a few hours of playtime.
That said, this is one of the most wonderfully atmospheric and engaging games I’ve played in a long time.
Pacing was quite good; and you never are truly rushed to try to figure out how to accomplish most tasks. There are a (very few) time critical mini-games; but none of them require more than a few tries to complete.
Knocked a star off for short length, and little bit too much handholding of the player. A player would do very well to consider this as an interactive movie, not a game with high replayability.