So, I saw this on Saturday, while I wouldn't call it a bad film (and Noomi Rapace & Michael Fassbender were particularly enjoyable), I did find it disappointing and left the cinema feeling very unsatisfied.
Without getting into spoilers, 1 thing that really stood out as a negative to me, was how all the designs (architecture & creature) were giger-esque, but never quite as good as HR Gigers designs, now, I understand why they did this, but I found quite a lot of the designs a bit...meh (Giger did provide some Alien murals for the film, but that was the extent of his involvement).

Naturally, it sets itself up for a sequel...