I loved putting thought into games like Silent Hill and uncovering the truth, and the secret meanings behind everything. I can't say the same for Alan Wake. There isn't much thought to put into anything that has a major impact on how I see the story. The only things that are thought invoking are minor things that don't really impact the narrative but how you percieve smaller events in the narrative. So to me all this digging for answers is pretty useless. I still have the same opinion of the narrative as I had when I beaten the game.
The story felt lifted straight out of a few other sources. None of which I liked. It felt like any of the bad Stephen King novels, lost, and alone in the dark mixed together. The combat was also mediocre and beyond repetitive. Still, I walked away from the experiance pleased. It was nowhere near the best game of it's genre and despite the sea of problems I still left the experiance pleased somehow. That to me was the real mystery.
The combat and controls is quite possibly the best ever seen in a horror game. Name me another game like this that has better combat.
The problem is that it lacks variety.