Put any other monster than the xenomorph and will be the same movie. Very slow, it used some of the other Alien movies scenes, Trying to create a character to replace Ripley, one of the most badass ladies in movies.
Interesting but not so astonishing like Alien and Aliens (Alien II). It's like a story about some people taking dumb decisions in the worst place to do it.
Trying to hit the nostalgia taking back some characters of others movies.
Entertaining but it isn't an Alien movie.
Finally, the Xenomorph is underrated, underused and nerfed.