"Couldn't stop listening - interesting and exciting"
While there is definite continuity across the entire storyline, it is largely a series of episodic adventures. This plot structure conveniently enables short listening periods (30 minutes to an hour) during which the listener can enjoy some real excitement. Even still, there is enough character and plot development that I was left craving for what would come next. The plot is great at both macro and micro levels. Additionally, the author includes a wealth of subject knowledge, securing both my attention and respect.
I happened to listen to 'Genghis: Birth of an Empire' around the same time. Genghis simply had none of the structure or subject knowledge necessary to keep my interest.