Button is 75/14 through 100 hands. Seems to limp just about every hand, and calls down most any significant piece of the flop, regardless of "wetness" of board.

UTG is 55/0, small sample.

Poker Stars $0.05/$0.10 Pot Limit Omaha Hi - 7 players
The Official 2+2 Hand Converter Powered By DeucesCracked.com

Hero (BB): $10.00
UTG: $8.05
UTG+1: $10.35
MP: $12.65
CO: $11.25
BTN: $4.75
SB: $14.25

Pre Flop: ($0.15) Hero is BB with 9 J 8 7
UTG calls $0.10, 3 folds, BTN raises to $0.45, 1 fold, Hero calls $0.35, UTG calls $0.35

Flop: ($1.40) 6 J T (3 players)
Hero checks, UTG checks, BTN bets $0.80, Hero raises to $3.75, UTG folds, BTN calls $2.95

Turn: ($8.90) A (2 players)
Hero bets $0.55, BTN calls $0.55 all in

I thought the call preflop was okay, but running through a simulator, it apparently was a little loose. On the flop I felt like I was in good shape against his PFR range, which I figured to be heavily weighted towards big pairs rather than higher rundowns.

What do you think?

pre is a fold, top gap and no suit. your draw isn't strong at all, only 2 nut outs, and since this guy never folds any piece, c/r is bad. just c/c.

Hands without a suit are pretty bad in general, I recommend you should be folding them especially oop. Hand you are having, I'd open from co/btn. Posflop you are not drawing to the nuts with your straight and there is a fd on the flop, so I wouldn't try to get it in.