Ezio is older and wiser, but that does not mean that he can no longer deal. On The Contrary! Ubisoft has a bit of tweaking in the fighting and called the combo attacks to life. Ezio is deadlier than ever and looks damn cool wiedermal from.
The story is also again very successful. You have to liberate Rome from the clutches of the Borgia. What concerns me that? Well, you learn the leaders of the various factions know (ie thief, courtesan and mercenary) and develop compassion for them. Because in Rome everything is terrible, since the Borgias are in power. In addition, you should because the first few sequences have enough motivation to bring the Borgia to track because so much was said, Ye since again for revenge!
The only thing I find a bit of a shame is the lack of setting change. Almost the entire story takes place in Rome, which is why the developers have but a lot of effort to make the city very varied. There is for each social stratum several districts and the rural part is decorated very large and with some ruins.
So you could say that Ubisoft has created a more than worthy successor for Assassin's Creed 2. And any fan swordplay enthusiasts should be thrilled.