What interests me about the heroine of this book is that she is a brilliant, scientific woman in the realm of genetics. Her backstory is interesting and compelling. She is not "rescued" by her romantic interest in the typical way romantic heroines are. Hendrix isn't a typical romantic hero. This is a flip of more conventional romances where it is the woman who reaches out to the man's heart--a man who has been hardened by the world. In preconceptions, it is the man who reaches into the heart of the heroine. Hendrix is artistically inclined as a musician and a writer. He is a gentle, kind romantic lead who helps to soften Pez, who is perceived by the world to be too aggressive. Hendrix's job is to make her seem more "human" by finding and showing the heart of Pez in his writings about her. They enrich each other equally. I like the dynamics between the two characters. I also like the scientific nature of the book and that none of the science is simplified. It's not a flowery romance--rather it is told in a different angle which suits the couple and the story better.