I would hate to be in the shoes of a filmmaker that needs to please a rabid fan base. The "Star Wars" sequels are a perfect example of this. Ridley Scott has the same challenge with the "Alien" prequels which you see in user scores. 

I loved "Prometheus" with its attempt at something bigger than just more face huggers and xenomorphs wreaking havoc. It was clear he was building a grander story to the eventual bridge to the original "Alien."   

He continues that bigger story with "Alien: Covenant" and whether he meant to provide fan service or not, we get that with face huggers and xenomorphs. (No spoiler as both are in the trailers.) 

Do yourself a favor and watch the short clip "Last Supper" (youtu.be/EkXgRlRao5I ) before you watch the movie. At only five minutes, it gives a better introduction of the Covenant crew than the movie does providing deeper emotional investment in these characters.  

Ultimately "Alien Covenant" delivers an excellent, fast-paced sci-fi action horror thriller (yes, it hits that many genres) like only Ridley Scott can that continues exploring the "Prometheus" theme of creation.