I've said it before, and I'll say it again: Ezio is the coolest, most badass video game character of all time. I cannot imagine another protagonist better written than he. His complexity, moral fiber, and chaotic neutral personality is thoroughly enjoyable, and he is the reason I love the AC games so much. Connor and Kenway were awesome as well, as was Altair, but Ezio cannot be beat. 
 I really loved this audiobook. It was read masterfully by the narrator. I really enjoyed getting to know more of the back-story, more about Ezio's feelings for Catarina and her true nature, more about his sister Claudia's life, more about Ezio's friendship with Da Vinci and his fellow assassins. The action kept me wanting to listen, and I can't wait for the next book. 
 Although the book was thoroughly enjoyable, I had to knock off a star for some crude content. While the games include brothels and such, much is left to the imagination and it isn't vulgar or explicit. The book crosses that line in some parts, and it made me slightly uncomfortable. I also felt that these sections added nothing to the story and were completely unneeded. For that reason and due to some extra foul language that also wasn't as prevalent in the games, I took away one star. 
 I would recommend this book to lovers of the Assassin's Creed games, or those who enjoy historical fiction. Although Ezio obviously isn't real, he interacts with several true key figures in Italian history. I also caution that this book is solidly rated M like the game, and is for mature adults only that don't mind brief language/content.