Despite some flaws ACIII is a great gaming experience.
The main plot is interesting but will not keep you at the edge of your seat, the graphic are superb(especially the wilderness), but obviously the XVIII century cities NY or Boston were not so colourful and visually stunning as Venice or Rome presented in the previous games. I had a lot of fun with the new combat system, which is much more smoothly now with attack/counter-attack system (similar as in Batman or Sleeping Dogs). The movement is also improved (just press RT to run/climb/do all the parkour stuff) but sometimes our hero will move forward/climb somewhere where he was not asked to (can be frustrating at times when chasing a target); The sea missions are a blast and are a very nice addition to the game. Overall a must play for any fan of a genre.