Good game. Maybe not long, but still enjoyable. Even the atmosphere is well-built for an only 3-day long game. Ability to find 3 different endings is an additional value of it.
But you should look into one thing because there is a feeling that some content is missing in the game.
SPOILER
When Laura (do I remember the name correctly?) is saying "What has he done?" or something like that after you extinguish the fire you just get the key and suddenly she is also dead, there is no logic in this scene.