I was really impressed.
Firstly, the film looked great. There was a shot of some control panels and screens inside a ship at the start of the movie that made me feel just based on the production design, that I was in safe hands. The early world building also got me in, showing the mining planet/colony where the sun is always obscured and disease is common, did a great job setting both stakes and motivation for the characters.
The stakes were then constantly raised, from stuck on a mining colony where you’ll have a short miserable life, to stuck on a space station with face huggers, to the space station heading towards the rings of the planet, to a hive of xenomorphs, etc…
There were a bunch of great set pieces: the face huggers in the flooded room, the elevator sequence, the zero gravity acid scene, just to name a few. A nice mix of action and horror which did a good job of capturing the feel of the first two films
The script was really tight, everything was set up and paid off nicely. I loved the Android Andy and his relationship with Rain, great performance.
I know some people might take this as a negative, but I thought it was to the Alien franchise what The Force Awakens was to Star Wars, a reboot that does a great job of capturing the elements that made the original films so great.
Just as a side note, I read that the director was a big fan of Alien Isolation and used the check points from the game in the film.