There's a bunch of good graphs and analysis in there (which matched my anecdotal experience of online dating).
The takeaway for me - if you're a man looking for a woman and you're not in the top 5% of attractiveness for men (really top 2%) then online dating is a waste of your time and you're better off doing pretty much anything else. This is doubly true in skewed dating markets like the bay area (less so in favorable markets like NYC, DC).
There's a lot of 'what you can't say'  in that book, sexual selection is skewed in lots of ways people pretend it isn't. I think it'd be better to acknowledge some of these things and consider it in an intellectual way - not so you can leverage it in some sleazy/misogynistic pick-up-artist way, but because understanding how it works helps you know how to behave/show confidence etc. Helps for the aspie-er among us where this doesn't come naturally (and is more important for men seeking women where for better or worse we have to be the ones to figure it out ).
On a somewhat related note, this Ted Chiang short story explores some of this and is just generally great: https://webcache.googleusercontent.com/search?q=cache:vSPLnv...
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