25/50 limped set, eh on how i played....Thoughts??

[the finest]

Full Tilt Poker Game #3880992232: Table Bluff (heads up) - $25/$50 - No Limit Hold'em - 6:28:15 ET - 2007/10/17
Seat 1: Bustable ($1,725)
Seat 2: DrBubbles ($2,274)
Bustable posts the small blind of $25
DrBubbles posts the big blind of $50
The button is in seat #1
*** HOLE CARDS ***
Dealt to DrBubbles [2h 2c]
Bustable calls $25
DrBubbles checks
*** FLOP *** [2d Ks 5c]
DrBubbles bets $50
Bustable calls $50
*** TURN *** [2d Ks 5c] [Ac]
DrBubbles bets $100
Bustable calls $100
*** RIVER *** [2d Ks 5c Ac] [7h]
DrBubbles checks
Bustable bets $150
DrBubbles raises to $500
Bustable has 15 seconds left to act
Bustable calls $350