RoboPlato said:
I know your impressions were positive but why do people tend to say this when the mention comparisons between this and RE4? RE4 is very, very linear with the exception of one splitting path. It doesn't make that game any less incredible and I doubt it will make any difference with Dead Space.
You could say that RE4 had an illusion of non-linearity; there were dead end paths that lead simply to items, or areas you could go a short distance down a future path for a short distance before hitting some sort of gimmick that stops you until you've accomplished something else first. In Dead Space, typically every door except the one you're supposed to take is locked. The next time you go through that area, with a different objective, the doors will be unlocked for no real storyline reason. So there's less of a feeling of exploration.
As LiquidMetal said, that was obviously the developer's intent, and it isn't necessary a flaw. I was just nothing that the few previews I read were misleading in comparing the game to RE4, when it feels a lot more like, say, Half-Life 2, where it's a more scripted and linear experience in which the developers doted over the details on a preset path.
BTW, I was playing the 360 version and the load times are by no means noticeably long. Also, the voice work is pretty good. And as everyone else has noted, the sound design is really excellent.