How to play HU

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Party Poker 2/4 Hold'em (10 handed) converter

Preflop: Hero is BB with 4[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#666666">3 folds</font>, MP1 calls, <font color="#666666">5 folds</font>, Hero checks.

Flop: (2.50 SB) 8[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">MP1 bets</font>, Hero calls.

Turn: (2.25 BB) Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">MP1 bets</font>, Hero calls.

River: (4.25 BB) 4[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, MP1 calls.

Final Pot: 6.25 BB

Who likes this check/check/bet line when HU?
I've been using it more lately when HU out of the blind and flopping top pair or middle pair thats not terribly vulnerable.