If you liked Prometheus, go for it. It doesn't have as much to offer in terms of aesthetics or ideas, but is a tighter narrative with more horror.

The key thing is, most of Prometheus' flaws are continued here, and in some cases considerably worsened. So if Prometheus had enough problems to put you off, in my opinion Covenant should be treated much like the sitting US President, so you should stick your fingers in your ears and try to pretend it doesn't exist.