hand 1: seems a bit tight, at least call and see what happens on the turn. I'd probably 3bet here myself, but this is certainly a dangerous flop.

hand 2: played ok.

hand 3: against a hyper-lagg river bet has value here, think he calls a lot with 10-x or 2pr. Then again i have seen guys like that chase all the way with Jx, but i guess you'll know soon enough.