Forget about AC1, the sequel is way better! Its not repetitive as the first one, don`t throw away a chance to play it!
Unlike Assassins Creed 1,which was a great game , AC2 wont get tedious at times, it wont require you to do the same stuff over and over again. Lots of new weapons have been added making the battles much more varied and fun to fight, but as it happens with AC1 you wont have much trouble with your enemies being that they only attack you one by one, making the game way to easy.
The main difference between the two games is that the second one has a main character while the first one has a "puppet".The lack of commitment with the main character in AC1 was not repeated in the sequel (thankfully). Not only that but there are secondary characters that are as good as Ezio , our hero , such as Mario or Leonardo.The story is immersive and has a good length with stunihing graphics
Another welcome addition is that there actually is an economy, you can buy better gear weapons, painting(???), and other stuff.You can also upgrade your small village making better equipment avaible in the shops.
The sad part is that the game is really easy, anyone can beat it with a blindfold.The battles are way to easy even if you are fighting 30 enemies.
Overall score: 9
To sum up its a great game worth its value , with an amazing atmosphere and few minor flaws.