Scary board, is this allin on turn ok?

[whittiphil]

Opponents seem like lags, but no stats on any of them, only 2nd orbit.

PokerStars No-Limit Hold'em, $1.00 BB (6 handed) FTR converter on zerodivide.cx

SB ($66.55)
Hero ($89.50)
UTG ($123.35)
MP ($153.95)
CO ($120.25)
Button ($179)

Preflop: Hero is BB with 4[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/diamond.gif[/img].
[color=#666666]1 fold</font>, MP calls $1, CO calls $1, Button calls $1, SB completes, Hero checks.

Flop: ($5) 3[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/heart.gif[/img] [color=#0000FF](5 players)</font>
[color=#CC3333]SB bets $6</font>, Hero calls $6, MP folds, CO calls $6, [color=#CC3333]Button raises to $12</font>, SB calls $6, Hero calls $6, CO calls $6.

Turn: ($53) 9[img]/images/graemlins/spade.gif[/img] [color=#0000FF](4 players)</font>
SB checks, [color=#CC3333]Hero bets $76.5 (All-In)</font>, CO folds, Button calls $76.50, SB folds.

River: ($206) J[img]/images/graemlins/heart.gif[/img] [color=#0000FF](2 players, 1 all-in)</font>

Final Pot: $206