Interesting game, but the actual gameplay is a little bland.
This is a game that quite handsomely fuses elements from games like GTA, Prince of Persia: The Sands of Time and Deus Ex, resulting in a mix of sandbox style gameplay, jumping puzzles with some cyberpunk stuff thrown in for good measure. It is also a console port where minimal effort has gone into adapting the interface and controls to the PC.
Most irritating is that there is one button that deals with both running and jumping; frustration is assured. You'll also be pulling your hair out occasionally to get Ezio to jump in the right direction; make the wrong choice and you'll jump into thin air and you'll have to do a lot of climbing to get back where you were.
When it comes to combat it is a terrible shame that it is all pathetically easy; enemies attack only one at a time, even if you're totally surrounded, and they don't seem to benefit from being behind you. Combine that with a magic parry-nearly- everything button. It's combat akin to that in Prince of Persia or Batman: Arkham Asylum, with your avatar doing almost more than one action for each mouse click. Click a few times and you can eat popcorn while your guy kicks behinds on screen (no hands, see!). Not good.
The best part of ACII is chasing people in adrenaline pumping "parcours" sequences, the aforementioned run & jump button will make Ezio do everything required so long as you are pointing in the right direction, as you zero in for the kill.
Great production values, voice acting and style: Assassins Creed II has a lot going for it, and it's been put smartly together, but it falls somewhat short of greatness. The story is a bit unfocussed, puzzles a bit too frustrating, combat far too easy. Good but not great.