Hmm I am not sure how reviews could have put people off, with the exception of IGN (which was controversial), the game has had positive reviews.
This BS about repetition is nonsense (in my opinion), the only thing that can be repetive is your actions, which you're in control of, I never did the same thing when encountering threats but if one is going to hide in lockers ALL the time then of course its going to seem repetive, the Alien AI is not either, the thing is cunning as hell, one time I "successfully" hid from it and it went away, turned out it was simply standing still outside the door waiting for me, son of the b**** was screwing with me
As the for the game length, its not really long in my opinion, I loved it and was worth the money......unlike A:CM which I completed in a few hours on ultimate badass.
I am currently replaying it again now, a tip guys... if you are using Kinect, keep your mouth shut, your voice is transfered in game and so it can alert enemies.