Well, I've gotten it and beaten it once, on normal. That was a mistake, normal was piss-ass easy. Should have started on hard. I thought I'd need a little time to get back into shape since I haven't played GoW2 in forever, but it was real easy to get the hang of again. I guess it's like riding a bike.
I have absolutely NO incentive to play through on Chaos though. No reason at all. I don't do harder difficulties for no reason and I'm not a trophy whore. GoW1 and 2 had unlockables costumes and extras for beating the game on harder difficulties but this game has nothing! One extra costume? Bullshit! At least with the Ultimate Edition I get the challenge of exile and Dominus outfit. I haven't been able to get my music though...the website keeps giving me an error page. Besides, I freaking LOVE my Pandora's Box. It's amazing and I'm glad I spent the money.
If they release costumes as DLC I'm not going to be a happy camper...but off that gripe for a moment (I want my fishy Kratos again!) I'm having an eensy bit of trouble with some of the trophies. I ended the game missing the last upgrade for the Nemesis Whip and Head of Helios. In GoW2 I rounded off my upgrades by doing the challenges, but this time the challenge orbs don't carry over to the main game as far as I can tell. How are you supposed to get enough orbs to upgrade all the weapons for the trophy?
Also has anyone here beaten the "Children of Hades 2" or whatever it's called with the 5 chimeras? I can't get that last one...got it down to the final circle prompt when I ran out of time once, but that's in 4 tries.