At first I didn't know what to think about this game. The gameplay surprised me a bit, and to be honest, I thought to myself in the tutorials: "Is this it?"
But I decided to keep on playing, and I'm glad I did. I got used to the gameplay and it became rather fun. But that's not where the strong point is in this game.
What impressed me about Alan Wake is the story line and how the game is set up. You're playing as a writer, and the game is played as if you were reading a book, or listening to an audio book. It has chapters, and even narration by Alan Wake so we can explore his thoughts and truly know how and what he feels.
The ending didn't leave me wanting for more, but it sure was a confusing, yet climatic ending.
All in all, Alan Wake has a great story line, and is in my opinion one of the best horror games I've played story wise.