I read this as part of an informal book club with my sister and while I loved arming myself with information about how my body works, her tone in delivering it was hard for me. 
There was an almost patronizing tone and more prescription than description where it felt unnecessary and almost pushy. 
The parts of the book that resonated most with me were some of the metaphors- reflecting on accelerators vs breaks, imagining my brain as a flock of birds, realizing that pleasure often comes *before* desire, etc..
Final note, I would love to find a similar book but one that takes a more inclusive approach- this book focused almost exclusively cis-gendered, neurotypical female experience.