How bad is this AKo play?

[jeffraider]

Party Poker No-Limit Hold'em Tourney, Big Blind is t50 (8 handed) converter

CO (t1990)
Button (t775)
SB (t970)
Hero (t1010)
UTG (t1205)
UTG+1 (t530)
MP1 (t695)
MP2 (t825)

Preflop: Hero is BB with A[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/diamond.gif[/img].
<font color="#CC3333">UTG raises to t100</font>, UTG+1 folds, MP1 folds, MP2 calls t100, CO folds, Button folds, SB folds, <font color="#CC3333">Hero raises to t300</font>, UTG folds, MP2 calls t200.

Flop: (t725) 3[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets t250</font>, MP2 calls t250.

Turn: (t1225) Q[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, MP2 checks.

River: (t1225) Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, MP2 checks.

Final Pot: t1225