As a review of our archeological and an anthropological knowledge of the ancient Maya, it serves more to highlight the lack of information that we have and the historical nuance of complex societies rather than present definitive research, which I found refreshingly honest. The discussion was much more focused on population, pottery styles, evidence of trade, and other hard evidence as opposed to broad strokes on culture and lifestyle.
As an audiobook Ms. May does a crisp and understandable reading, but tends to keep a flat, narrative tone that is appropriate for a non-fiction, albeit harder to listen to. Conceding that non-fiction history is a challenge for audiobooks, I've listened to historical non-fiction books that were more engaging than this.
In conclusion, this book is very informative and a great review on history, but is rather unapproachable to a broader audience.