[Question] When is evolutionary psychology useful?

I am currently improving my courtship skills and am reading Mate by Geoffrey Miller. The book relies heavily on evolutionary psychology, which I was previously critical of.

My earlier perspective was that because we know little about the human evolutionary environment, evo psych is full of “fully general arguments”. I can assert lots of attributes to the evo environ to support any position, so I can support no position.

But I do not have a good source of priors for what women find sexy. Evo psych is offering priors and most of them so far match observational data. Was my previous view of Evo psych wrong, and if so how?