Im quite enjoying it, although i'm finding the overall difficulty really hard as mentioned in reviews. I actually have it on Casual now, which is a lot better for me since its more fun!
Also is anyone else finding it hard to get achievements? Im not specifically renting this game for them, but i just took a look an i only have 95points on it and thought, thats a bit low! I've just got to the base in Oasis having finished almost all of Dust.