I probably will.  The only thing I disliked about the console version was aiming and all that...so I traded it in cause it was frustrating.  Hopefully they've improved that.

The atmosphere was great and the story was good...and very strange.

Well, I am just playing it. I very much liked the beginning, since there is a "promise" of great things to come. The setup is interesting enough, some scenes are properly spooky, the atmosphere and the mystery seems to build up nicely. 

However, there are major downsides - the actual gameplay, while built around a very nice effect of "dark forest coming all alive" (we all know it from childhood, when fantasy and fears play tricks with eyesight in the dark, only hundred times magnified), but it gets very old very quickly. There is no exploration, it's a canyon with only one way to go. The combat is based on a single trick you repeat over, over, over and over again. Later in the game, it literary turns into pain you have to endure to make it to the next non-interactive cut-scene that pushes the story forward. Early in the game, there is enough variety in environments to compensate, the daytime sequences let you rest, but now I am in the middle of the third episode and I can't force myself to play on.

Speaking of the story, there comes a moment you realize it's just a pile of cliche stirred up in a pot. It borrows heavily from Silent Hill ("am I crazy, am I making this up, do I fight monsters, or am I killing people?") and from Stephen King ("Am I a crappy writer or not? Ha I can't be, since the HELL itself is forcing me to write on"), but the characters end up being cardboard props, complete with the mandatory comical sidekick who can't act so he must talk all the time - you can find them in every American movie for some reason. There is just not enough depth in them, there are no lingering mysteries, the game does not compel you to write plot analyses longer than the script itself like Silent Hill did. In the end, it's to Silent Hill what Dan Brown is to Umberto Eco - a simplified, more accessible version of the same more suited for general public, with a convenient answer for every question the plot presents. Where Silent Hill uses symbolism, Alan Wake is content with obvious references to famous horror flicks like Shining and Birds. 

IMO it's a game designed to create an early WOW wave to boost sales, but not enough effort and resources are spent to create content for mid-late stage.

However, there are good points - beautiful landscape and moody atmosphere, the dark forest trick (before it gets old), dodge move in combat (I like it very much, it's a proper horror last moment escape), and the way the game trains you to associate light with safety and darkness with threat - the setting sun in the beginning of the game is really subtly used to create an atmosphere of an unknown threat getting closer and closer... and thats it.

Technical note - PC port has problems, all the cutscenes have sound out of sync, it's maddening. Also, trees at some scenes flicker, it's super ugly.  The mouse controls are crappy as with most ports, I recommend XBOX gamepad. 

I couldn't get past the part where you're int he back of the truck. The game basically has one way and one way only for you to do anything successfully. This is just boring and frustrating, not fun.

I am at the last episode now, it's really, really dragging. There were some enjoyable characters, like two crazy members of a heavy metal band and a fight using stage pyrotechnics as weapons - but then I remembered that it's ripped from Left for Dead 2... who in turn probably ripped it from Tarantino's "From Dusk Till Dawn" ... at least I think.

And yes, it's absolutely maddeningly linear, you can explore a small part here and there, but the most you will find is a few extra clips or a flashbang or a flare. 

But I am probably a bit hard-to-please gamer since I have played so many things. This game is not bad, it's technically well executed, and if it was a movie, it would be your classic B popcorn flick to relax at - you don't go to see it for artistic qualities, or to taste something new - quite the opposite, it presents rehashed bits and pieces of other movies and games we have already seen thousand times - the feeling of "been there, done that" permeates almost every scene. But some people love just that. If only the gameplay would be more varied, it would be a great time waster, even.

As for Eco and Brown - read the paragraph "Comparison with other writings":

http://en.wikipedia.org/wiki/Foucault's_Pendulum

Ad controls - I did not even try to use kb&mouse seriously, I pulled out my XBOX360 gamepad. I bought it specifically for the purpose of playing console ports - they never, ever have the control scheme right. This game is no exception - don't forget that console players always have to fight not only the in-game foes, but the camera and the aiming too. Gamepads can never even approach the fluidity and natural aiming of mouse and keyboard, so console games use various aids to be playable - auto aiming, snapping to enemies (this game does it to), since you cannot "look around" instantly with a gamepad. The characters on consoles feel more like tanks with a rotating turret. This concerns all ports I have played - Silent Hills, Resident Evil Games, Metal Gear Solid, everything. GTA had good mouse support, and that made shooting sequences too easy. 

Ad shoulder camera - there is a problem with 3rd person games that requires you to look at details - the player character is in the way. Alan Wake solves it by letting you look over the shoulder, and if you play with a gamepad, pushing the right analog stick switches from left to right shoulder view. I got used to the controls eventually, you will learn to anticipate that the fast enemies will always circle you and attack from outside of your view, so you will learn to use dodge to shake them off. If you are surrounded, throw a flare; I had like 17 flares in the end, the game is pretty liberal with ammo (played on Normal, the hardest diff I was offered).

I have finally finished the game, most of the sixth episode feels to long - there is no plot advance, you already know everything, you just trudge through the endless forest to the final cutscene. I appreciate the fact they tried to make it interesting in the end, but if you think about the plot conclusion for a while, it just does not make sense - the game ends up breaking its own logic, as many mystery and sci-fi movies do in the end.

BTW I was thrilled by the game in the beginning too, enjoy the great overture while it lasts.

One more thing - driving is absolutely horrible, the cars feel like cardboard boxes, jumping and skidding constantly, lacking the proper mass and momentum.