@Ghost_of_GhostDad: That scene you mentioned was really freaky. Yeah when it wants to be freaky then you're right, it has a great bit of tension.
@Ghost_of_GhostDad: About the last scene..
Anyways, unless you went in thinking this was going to be exactly like Alien then I find it hard to believe you couldn't find some of the best sci-fi in years, even ever, here. It certainly has a very different feel than Alien, with way less of a focus on horror, but I thought it managed to balance itself out well. Also throwing in some fantastic moments of wonder when certain things were revealed. People really just need to get their expectations in check, you can't go into a movie thinking you already know how it should go and then be surprised when you end up disappointed.
I'm glad it's so different from Alien thematically and I don't think it would have benefited at all by not being a prequel to it. Some of the best moments were the clever reveals that give you recognize from the first film. It brings up some questions sure, but it also answers a ton. We now know their true origin and why they exist. That's huge. Wrapping up everything so nicely isn't all it's cracked up to be, mystery is always a welcome addition.