200nl - KK oop, value bet the river?

[pwalsh21]

Poker Stars - No Limit Hold'em Cash Game - $1/$2 Blinds - 6 Players - (LegoPoker HH Converter)

<font color="black">Hero (SB): $276.50</font>
BB: $89.80
UTG: $283.15
MP: $339.95
CO: $54.40
BTN: $191.55

<font color="black">Preflop:</font> Hero is dealt K K[img]/images/graemlins/spade.gif[/img] (6 Players)
UTG calls $2.00, <font color="red">MP raises to $10.00</font>, 2 folds, <font color="red">Hero raises to $33.00</font>, 2 folds, MP calls $23.00

<font color="black">Flop:</font> ($70) 2 Q[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero bets $50.00</font>, MP calls $50.00

<font color="black">Turn:</font> ($170) 5[img]/images/graemlins/heart.gif[/img] (2 Players)
Hero checks, MP checks

<font color="black">River:</font> ($170) 2[img]/images/graemlins/spade.gif[/img] (2 Players)
Hero...

Villain is a solid TAG, 19/15/2 over 180 hands. Not sure if I should bet and try to get value from TT/JJ/AQ, or check/call in case I'm behind. Thoughts? Fwiw, I was planning to c/r the turn.