Villain has not been at the table long, so no stats. He once limp-called my 4.5BB raise in EP with 72s, check-called my 3/4 pot c-bet when he hit the 2 (no fd), and checked down on the turn and river.

I have raised the three consecutive hands.

PokerRoom No-Limit Hold'em, $1 BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG+1 ($105.80)
MP1 ($37.50)
MP2 ($102.60)
MP3 ($62.30)
CO ($178.40)
Button ($99.40)
SB ($156.25)
BB ($32.50)
Hero ($152.20)

Preflop: Hero is UTG with A, Q. SB posts a blind of $0.50.
Hero raises to $3.5, 7 folds, BB calls $2.50.

Flop: ($7.50) 4, J, 4 (2 players)
BB checks, Hero checks.

Turn: ($7.50) 7 (2 players)
BB checks, Hero checks.

River: ($7.50) A (2 players)
BB bets $29 (All-In), Hero... instacalls or instafolds?