According to Pez seem like this game is more like the first GOW than GOW3.
"Single-player is a tough one to judge. It’s less of an epic tale than God of War III, and more of an adventure or journey akin to God of War or God of War 2. I can’t blame the developers for going this route, as it’s hard to replicate the same sensation felt when slaying nearly all of the major Titans and Gods of Olympus in just one game’s span. Especially, when the majority of significant figures from Greek mythology have already been explored, there was little left in the way of bosses, leaving what’s here unable to live up to the lofty expectations set forth from the previous PS3 entry in the series."
but ...
"That’s not to say the campaign isn’t exceptional—it is—it’s just presented in an entirely different fashion. There is more focus on combat with regular enemies and sub-bosses like the Juggernaut or Cerberus, and there is much more climbing and platforming than ever before. Using the new Amulet of Uroborus (pictured above) to de- and re-construct destroyed architecture coupled with the body-double producing Oath Stone of Orkos provides ample opportunity for puzzles—more puzzles than ever, and some of the best to ever grace the franchise."
PSLS http://www.playstationlifestyle.net/2013/03/07/god-of-war-ascension-review-ps3/