Perspective gameplay, you will spend minimum 12 if you do not stay on quests or trophies / success. If you decide to go to the end, you will easily reach more than 30h. The gameplay has been improved with a new handy artifact. The game offers a lot more action scenes than previous episodes. For cons, the difficulty really down compared to Brotherhood. What perhaps disappoint some (still you can have fun and get synchronizations guild challenges that put the pepper).
We find some new concepts (defense of the mark, hook facilitating ascents assassins) as well as old as the system assassins in Brotherhood (made more complicated), basic weapons, armor, books replacing the tables. You can now make bombs. Only two cities to visit. We appreciate the gain of warm colors and brightness through Byzantium, very good graphics and engaging characters and typed.
The only flaws in my eyes? An end very similar to the previous game and announcing a sequel to the series. And especially countless bugs as well as technical graphics ... sometimes forcing restart sequences. Maybe in the next patch will overcome.
Conclusion? If you take your time on this episode, and you get to manage both quests the main quest will lie lifespan considerably and will enjoy all the intricacies offered by the game.