Awesome movie, about exploration and mystery of life (and the universe)
The incredible ambiance and atmosphere it pulls you in.
The visuals and effects are stunning.
The plot smartly developed and keeps the tension and mystery super high all the time.
The soundtrack absolutely brilliant.
The bad reviews are from Alien fans who were hoping to see xenomorph running everywhere like wild beasts killing humans like in the past Alien movies, so their ratings represent their disappointment of it not being a typical Alien movie, it doesn't represent the actual quality of this movie.