I think graphically it looks amazing. Exactly what I wanted from an Alien game. The low-fi 70s feel is nailed exactly. From a gameplay perspective is where things start to fall apart. I compare this demo to the other footage and see a lot of scripted sequences and Alien placement. I hope that there isn't a 100% chance of evading aliens in lockers, and even if you hold your breath you could just get unlucky and die. That is the real fear... not knowing if you're going to be spotted or not.
However, it appears that the Alien will always appear at the airlock door and stand there waiting for you. It appears that there is maybe 5 minutes of actually unscripted Alien behavior that they tout around so much. Not really all that impressive.
I can hope that they'll make improvements and variety to the game, but honestly we're talking about a couple months before they need to go into gold master for manufacturing reasons. Not to mention that we have seen NOTHING of the non-alien parts of the game. Is it just going to be evading alien for 8 hours? Or what is the other obstacles mechanics in the game. They spoke of a crafting system, but without any solid details or gameplay footage.
I'm worried, it's obvious a LOT of love has been put into the look, but without the gameplay to back it up, it'll just get boring fast (see Outlast).