This movie felt somewhat like a cross between a couple of movies I've seen, one being Moon (2009) and the other I can't remember.
In all aspects - acting, scenery, story - I felt that Moon was a better movie. It does not make this a bad movie, but I never got the same feeling watching this one.
Perhaps if I saw this one first, I'd rate it a 6 or 6.5. But I gave Moon an 8.