do you like resident evil 4?
do you like the first couple alien movies?
do you like the comic book writers, warren ellis and rick remender? (if you dont know who they are, please check out their works)

the game can get a bit repetitive, but frankly its a better resident evil 6 than resident evil 6

just buy this game already

also if you're playing on PC (which you should), you will need to download a fix for the mouse acceleration and fiddle with some things to limit the framerate to 60fps, as the game has some major issues if you have a framerate any higher
but if you go to the pc gaming wiki page for dead space, you can figure everything out, its not hard and only takes a couple minutes