Weak hand vs silly

Opponent is pretty bad. Just overall bad, can be loose/passive, or too aggro. Is this hand total crap?

Preflop: Hero is CO with 7[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 folds</font>, <font color="#CC3333">Hero raises to $3.00</font>, Button calls $3.00, <font color="#666666">1 folds</font>, BB calls $2.00.

Flop: ($9.50) 8[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, <font color="#CC3333">Hero bets $6.00</font>, Button calls $6.00, BB folds.

Turn: ($21.50) Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, Button checks.

River: ($21.50) 2[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets $9.00</font>, Hero calls $9.00.

Final Pot: $39.50.