"Assassin's Creed 2 pulls out all the stops, addresses some of the issues that bugged me about the original, and long after you've completed the main quest you'll still be playing this to hoover up the extra stuff that they've shoehorned into an already packed game. Achievement junkies will find plenty to keep them occupied and conspiracy theorists will get a huge buzz out of that underlying "mission within a mission" that bubbles under the main structure of the game.
It'll be very interesting to see where the team takes the third game (and by crikey, there had better be a third one). With a bit of a tech tweak (sort out the tearing guys, c'mon!) but keeping the same structure and feel that AC2 has, they should be onto a sure-fire winner so let's hope it happens sooner rather than later."