I spend 90+ minutes a day in my car, Audible makes it enjoyable regardless of what's happening in traffic. My taste varies from endurance fitness to economics and from to combat stories and romance novels.
While I really did enjoy the book and gained a lot of useful information, there were a lot of times when it was difficult to tell when the reader was transitioning from explaining something to citing examples and quoting from survey respondents. This gave it a bit of a jumbled feel while listening. I'm not sure whether to blame the reader or the authors for the way the book was formatted, but I was left thinking that I might have gotten more out of the print version.
In any case, the book was highly informative, written at a very readable level and I found it a very quick read that wasn't overly technical. The author avoided jargon, but didn't talk down to readers.
While it does address the question in the title (using surveys and principles of evolutionary psychology, it explains what causes so many men to prefer blondes), the book goes way beyond that. In fact, the question about the preference for blondes is only one rather small part of this book. Instead, the book uses the field of evolutionary psychology to examine what some of the factors that determine mate selection and attraction are.