I haven't beaten Ascension yet but its been a great ride so far. I'm definitely experiencing the sound issues that other people have mentioned and honestly its the only major gripe I have about this game up to this point. The combat is as fluid as ever and the set pieces.. WOW.... SPOILER....... The snake sequence before the manticore was great!!!
The parry system is meh but its plausible that Kratos was less efficient at countering enemies earlier in his life
One thing i wish they had incorporated is the MP persian coliseum stage in the sp campaign somehow. Would have been a great opener, kratos in the final bout of the games to be executed by an ogre & multiple enemies in front of a roaring crowd