Live Monte Carlo KK hand

[celticslegend]

I've been meaning to post this hand for a while but never got around to it. It is from the main event of EPT monte carlo.

It's the early in the first level so dont have a concrete read on the villain but by the way he handles his chips and the bit of chat he has made he does not seem like a very advanced or thinking player. I have been somewhat aggressive but nothing crazy and have not yet showed down a hand.

Blinds 25/50
Folds to me on the button I make it 175 with black KK, villain immediately raises to 675 out of the small blind, I decide to call.
Flop: qqj rainbow villain reaches for some chips then checks. I check behind.
Turn: 7, completes the rainbow. Villain bets 800 i call.
River: 7...

A) If villain checks are you value betting, if so how much?

B) If villain bets ~1600 call or fold?