If you watched Alien and Aliens you know they were the best of the franchise. The bar is set high. Like unreachable.
In my opinion Alien Romulus recycles too much material from previous films. But it is what it is. Group of humans stumble upon aliens, aliens implant humans, aliens hunt humans and eventually there's one to two survivors. I mean they tried to incorporate something new into this one but it only succeeded in feeling like a combination of Alien 3 and Alien Resurrection.
SPOILER: Not to mention at this point any new film from this franchise is predictable. I knew Kay's baby would eventually wind up being an alien or having one inside him as soon as Kay told Rain she was pregnant.
The movie itself was enjoyable but that's it. Nothing special.