This is one of the games which makes you want more, and then delivers it.
The combat system may not be realistic, but it was designed to be fun. You will have to battle 15 armed Templars simultaneously, yet it makes it an enjoyable experience - so much that you will start trouble yourself just so that you get into a fight.
Storyline is a bit straight forward - you have to assassinate 9 people holding high positions in the society. The voice acting, animation and ambient music all combine to make it an amazing experience.
The missions may be repeatative, but it still leaves you wanting for more. This definitely is one of the best games I have played.