An absolute masterpiece. Bought the game for 5.59$, but after I've played it, wouldn't be a problem to pay the whole price (27.99$)

My thoughts:
First 1-4 hours I was totally hooked to it. Couldn't stop playing and wanted to see where story leads.
The game let's you make decisions and I totally love it. The ending might not change due your decisions. But you can still choose some things. (kills, run or sneak etc.)

8 hours non-stop gameplay in my opinion is alot and I totally think you can get 12+ hours to it, if you search all the hints and read all the documents, journals etc.

I'm a huge fan of a Scifi games/movies and was afraid that this would let me down, but damn! It didn't.

The game totally changed my perspective of thinking the 'real' world.
Game totally made me ask pretty rough questions, and have to say. I kinda like it.