I'm a couple of hours in and so far I have mixed feelings.
The story is ok.
The atmosphere is seriously intense!
The gameplay is ok.
The game in general is very frustrating. Crawl crawl crawl crawl, solve a puzzle, crawl crawl, die. Start over.
Save points are fairly infrequent and you can spend 30mins trying to complete an objective, only to die right at the end and have to reload the save.
It is strangely involving, perhaps due to the fact that I am a fan of the movie. The look, feel and sounds of the environment really makes it feel like you're on the Nostromo.