Don't bother all people saying it's "repetitive" . It's a great game with amazing graphics and really cheap !
The length is just perfect : I played it for an entire VACATION week (so like 7 hours a day) , till i finished it .. The end is pretty weird , but it's still the first piece of a trilogy :)
The fighting part of the game is engaging : It's not like u can easily kill hundreds of guards with 5 HP-bars .. And the best part of the game is of course the free-running , but you'll notice that .
Conclusion : Without a doubt worth it's money , and you'll need it to play AC2 , wich will have all the good parts of this game , but won't have the bad parts (i hope so , but i think that they will change what sucked :) )
Graphics : 9.5
Gameplay : 9.5
Music : 10
The good : Awesome graphics . Great gameplay . Excellent music . Good story . Lovely to climb on buildings .
The bad : It's not a game u replay 3 times . Some little glitches . Going to the doc can be really irritating ;)