An enjoyable movie for sure, I can see the influence of "Alien", but certainly not in a bad way. I liked the set design, the creatures were awesome, the acting was on point.
I think a few little nit picks I have is, less slow motion, more long takes-let a scene breathe. Don't keep cutting back and forth during scenes of horror, let the audience take in the atmosphere and really feel the dread.
But, I don't think the hate for this movie is fair at all.