Great game, but there are better ways to spend 60 bucks. At the same time you should play it at least once, RENT IT
Graphics are beautifully rendered, even amazing. You can easily find yourself lost in the life of our protagonist. Sound is great as well and it also helps to immerse you into this world.
Controls are intuitive. They are simple enough yet allow for some variety. However, the combat system may not appeal to some, because it relies heavily on only two buttons. I personally found it to be fine.
Game play is where it shines and dulls. Playing the game you will soon become familiar with the somewhat monotonous game play. It is very fun and fresh at first, but soon you may grow tired of the unvarying missions: pickpocket, eavesdrop, assassinate, fight, and collect flags...Wash, rinse repeat.
Replayability is non-existent, once you have completed the game there isn't much else to do, but relive the assassinations if you really want to.
It is a great to play only once. (Like I said rent)
Some type of online play would be great, however it is non-existent as well.