Villain bought in full I think, seems to be a below average regular running 22/17 or so. I've been in a lot of pots at the table but with the goods. Also, he called flop and turn pretty quick and fired river in ~4 seconds.

PokerStars No-Limit Hold'em, $4 BB (6 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

SB ($170)
BB ($278.45)
Hero ($576.70)
MP ($400)
CO ($1603.35)
Button ($623.95)

Preflop: Hero is UTG with K, A.
Hero raises to $12, MP calls $12, 4 folds.

Flop: ($30) 4, 6, 6 (2 players)
Hero bets $20, MP calls $20.

Turn: ($70) Q (2 players)
Hero bets $52, MP calls $52.

River: ($174) 5 (2 players)
Hero checks, MP bets $110, Hero calls $110.

Final Pot: $394