I love the Assassin'a Creed franchise. It's one of the only games, other than Batman, that emphasizes stealth and badassery equally and I dig that. This is my first AC book, but I am an avid sci-fi and fantasy reader so I'm used to a story needing some setup. Revelations simply did not live up to my expectations.
The book is separated into three acts and they generally follow: Act I, how Ezio gets to the new city and who he meets; Act II, the adventure; Act III, the epilogue. Act I is a little more than 40% of the book and, from where I was sitting, the most boring story I have ever read. It read like the author was watching someone play the game and writing what he saw. Not just the scenes, but I could envision the player's tutorial for the new weapons and moves because I was reading it. Reading "executed a Leap of Faith" takes all of the excitement out of the act for me.
I paid $10 for the Kindle version, which means I have to finish the book, so I kept reading. Act II was a lot of fun! This was the book I was hoping for, but the story was almost half over. The pacing was good, the action and scenery descriptive, and the dialog very true to the game's setup. It was simply too late.
Act III is the wrap-up of Ezio's career as an Assassin. I thought the story was going to end after each chapter, but it just kept dragging on. Ugh, they introduce the character for a potential sequel, as well they should, but it's like pulling teeth getting to that part.
Play the game, don't read the game. You'll get more out of it! This was a terribly arranged and often poorly written book.