600nl snap call? or fold? river shoooved

[stackingboxes]

villian is pretty aggro preflop, calls alot of 3 bets and folds most of them. but that prob doesn't apply here.

Is this a snap call? I just wanna make sure.
his OOP shove is def not a bluff imo..

Party Poker - No Limit Hold'em Cash Game - $3/$6 Blinds - 5 Players - (LegoPoker Hand History Converter)

SB: $959.43
BB: $1,005.00
Hero (UTG): $714.00
CO: $1,040.37
BTN: $618.00

Preflop: Hero is dealt 9[img]/images/graemlins/spade.gif[/img] 9[img]/images/graemlins/club.gif[/img] (5 Players)
<font color="red">Hero raises to $22.00</font>, CO folds, BTN calls $22.00, SB calls $19.00, BB calls $16.00

Flop: ($88) 2[img]/images/graemlins/heart.gif[/img] 9[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/club.gif[/img] (4 Players)
SB checks, BB checks, <font color="red">Hero bets $55.00</font>, BTN folds, SB calls $55.00, BB folds

Turn: ($198) 3[img]/images/graemlins/heart.gif[/img] (2 Players)
SB checks, <font color="red">Hero bets $150.00</font>, SB calls $150.00

River: ($498) T[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">SB bets all-in for $732.43</font>, Hero calls all-in for $487.00
Uncalled bet of $245.43 returned to SB

Pot Size: $1,472.00 ($2 Rake)