100nl - value bet top set on 4-flush board?

[igetjokes]

I'm trying to value bet more often, and I'm just wondering if this is a spot to bet/fold the river?

Villain is 44/12 over ~100 hands. We have no real history.

Party Poker No-Limit Hold'em, $1 BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

saw flop|<font color="#C00000">saw showdown</font>

MP ($153.05)
Button ($98.50)
<font color="#C00000">Hero ($122.65)</font>
BB ($104)
<font color="#C00000">UTG ($122.15)</font>

Preflop: Hero is SB with Q[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/club.gif[/img].
UTG calls $1, <font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to $5</font>, <font color="#666666">1 fold</font>, UTG calls $4.

Flop: ($11) 6[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/spade.gif[/img], 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $7</font>, UTG calls $7.

Turn: ($25) T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>

Villain tanked for ages before checking turn.

River: ($25) 3[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>

Final Pot: $25