c/r oesd on flop vs. unknown?

[testaaja]

MP is almost unknown. He has only a few BBs left. Does it make any sense to c/r this flop? I know MP for maybe 6 hands~ or so and he has played them all(?). He has also bet everytime it has been checked to him. I guess I can't drive him off here and calling and check/folding the turn UI is better?

PokerStars 0.50/1.00 Hold'em (5 handed) FTR converter on zerodivide.cx

Preflop: Hero is BB with 4[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/club.gif[/img].
<font color="#666666">1 fold</font>, MP calls, <font color="#666666">2 folds</font>, Hero checks.

Flop: (2.50 SB) 6[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">MP bets</font>, <font color="#CC3333">Hero raises</font>, MP calls.

Turn: (3.25 BB) J[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, MP calls.

River: (5.25 BB)
Hero checks, MP checks

Final Pot: 5.25 BB