I don't know why i keep watching these, knowing that the more they explain the backstory, the less scary the series becomes. I remember when i first saw the pilot, i wasn't even sure what i was looking at. It was this bizarre spectacle with no explanation and that's what made it creepy. The more you see it and the more it's explained away, the less scary it gets. Same with the aliens.
Also, David fell flat somehow. They set him up in that first scene, but for me he didn't compare to Ash or Bishop.
Some of the visuals were interesting, but that's about it.