Too Linear
You enter the first room and all of the doors are artifically sealed until you play out the "be surprised and scared scene". Then you are allowed to go only so far down the hallway in front of you until you act out the second "be surprised and scared scene". And this goes on and on and on as if the gameplay is on railroad tracks.
You probably know what I am talking about. Well, "Dead Space" comes across as that sort of game. You are not wandering around a haunted space ship so much as acting out some dev's prescripted drama. Not fun the first time through, certainly has zero replay value.