AQ line check vs bad player

[Teh1337zor]

36/6/3
Ive seen him show 2 bluffs, one c rai flop and one 2 barrel, the reason I flat called flop was bc I thought I could get more value from his air hands by letting him fire another bullet and the board was dry so there went too many bad cards
good or bad? (felt pretty standard but a friend at my house disagrees)

Full Tilt Poker - No Limit Hold'em Cash Game - $2/$4 Blinds - 5 Players - (LegoPoker Hand History Converter)

SB: $907.60
BB: $520.30
UTG: $499.30
Hero (CO): $485.40
BTN: $1,213.25

Preflop: Hero is dealt Q[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/club.gif[/img] (5 Players)
UTG folds, <font color="red">Hero raises to $14.00</font>, BTN folds, SB calls $12.00, BB folds

Flop: ($32) 2[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/spade.gif[/img] (2 Players)
SB checks, <font color="red">Hero bets $20.00</font>, <font color="red">SB raises to $84.00</font>, Hero calls $64.00

Turn: ($200) 6[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">SB bets $160.00</font>, <font color="red">Hero raises all-in to $387.40</font>, SB calls $227.40

River: ($974.80) Q[img]/images/graemlins/club.gif[/img] (2 Players - 1 All-In)