The game itself is really good, the city is beautiful, most of the mechanics are wonderful. The story line is pretty decent.
With that said, I really dislike how we do not have the ability to pick up weapons from the guards, dont have spears, bow / arrow anymore. Only have a sword and dagger. Which this alone would be fine if there were some polished mechanics for this but during fights, it is all the same, Parry then attack, parry then attack.
I do feel like overall this game is the right step towards the classic AC games BUT still lacks a good number of things, most of which I mentioned above.
As far as being able to replay the game multiple times, I just done see it. I am about 15 hours ish into the game, most of it completed and I find my self bored after a while and have to put the game down. Mostly the parkour aspect, it needs major polishing.