I finished God Of War 3 tonight and I have to say this was my guilty pleasure. Not only did I love the story, but I loved all the brutally filled action sequences such as decapitating centaurs or smashing stone statues with giant hammers. There is also the love of mythology and enjoying the presence of various characters from said myths throughout the game as well as gods. I also liked that there was a little more character development with the hero Kratos and the idea of redemption and hope.
The game play is pretty tight and the same as the previous two games, with a few odd camera angles here and there, but over all the controls handle very well. There are even some new weapons to add to the artillery with some very interesting tweaks on the old ones making for a fun siege on the gods. There are bonus items that are unlocked once you beat the game and some fun costumes.
I will be playing through God Of War 3 again just for those bonuses and to check them out. If you haven't played the game yet, I suggest you do especially if you like an action game with a lot of punch.