Flop and turn seem pretty standard and wp to me. River seems like a slam-dunk fold though when read-less. If we think he's super air heavy (not sure how we could know this) then we could call, but otherwise there's just no need. His air should be only 3-barreling to try to get us to fold draws that missed (no need to jam), and maybe some Jx (again, jam seems unlikely). His entire value range should have us beat though imo.

This is usually a fish trying to get max value without knowing how to build the pot effectively- he doesnt care what your range/hand is, he just wants all the money in. 

As a general rule, spots like these should not be the 'toughest' you've seen in a while because you can just treat is a bad player who is super-unbalanced to one extreme.  In this case your opp is unbalanced toward overbet-jamming the goods so you'll know how to play vs other bet-sizes he comes up with.  Make a note of hands he shows down and the bet-sizes he used and you'll own this guy.....

yeah i didn't claim this guy was the toughest opponent, but this was a tough spot for me readless for sure. @Wysedriod: are you leaning towards calling here and taking a note then, or just goin into hem an studying this guy after the session? cheers