This is honestly the reason to buy a PS3. Every aspect of this game has been polished to perfection. The graphics are simply stunning, with gorgeous environments rendered in detail not seen elsewhere. This is a benchmark to which all action games should be compared to as of now.
The game itself owes a lot to Hollywood but unlike most games the voice acting and animation are top notch and the story is so well paced that the game never becomes boring. The gameplay is also very polished with a simple, yet effective control system that allow combat as well as exploration.
To top the package off the game has a rewarding online multiplayer element that can easily take away hours of your life and just adds to the lifespan of an already amazing game.
Overall, you must buy this game if you haven't already and at this price you'd be mad not to!