Weird JJ hand (Party 10/20)

[McShove]

I don't post hands here often, but this was a strange hand. Villain is ChillCheebah, who is relatively new to the 10/20, but is killing it as far as I can tell. He seems quite solid, and also capable of moves/creativity. We have been battling across several tables for some time at this point, and he has been getting the best of it. His stats are 19/16/3.5. He continuation bets nearly every flop in my experience.

I won't post the results of the hand or my thoughts for now. I'm interested to hear opinions first. Comments on all streets are appreciated.

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

BB ($1705.52)
Hero ($1943)
MP ($2309.37)
Button ($2792.50)
SB ($5052.50)

Preflop: Hero is UTG with J[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/heart.gif[/img]. SB posts a blind of $10.
<font color="#CC3333">Hero raises to $70</font>, <font color="#CC3333">MP raises to $239</font>, <font color="#666666">3 folds</font>, Hero calls $169.

Flop: ($508) K[img]/images/graemlins/spade.gif[/img], T[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, MP checks.

Turn: ($508) A[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">MP bets $300</font>, Hero calls $300.

River: ($1108) A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">MP bets $999</font>, Hero calls $999.

Final Pot: $3106