Top pair on flop, but is it good enough?

[Misja]

Absolute Poker, $5/$10 full ring.

UTG+1 has VPIP 27%, pf raise 5% and agg.factor 0.18/1.23/1.71/1.0
UTG+2 is tight passive.

Comments on all streets appreciated.

I am BB and hold Q [img]/images/graemlins/club.gif[/img] 8 [img]/images/graemlins/club.gif[/img]
UTG folds, UTG+1 calls, UTG+2 raises, folded to me and I call, UTG+1 now reraises, UTG+2 and I call.
Flop: Q [img]/images/graemlins/heart.gif[/img]9 [img]/images/graemlins/heart.gif[/img]9 [img]/images/graemlins/diamond.gif[/img]
I bet, UTG+1 raises, UTG+2 folds, I call
Turn: 5 [img]/images/graemlins/club.gif[/img]
I check, UTG+1 bets, I call
River: 5 [img]/images/graemlins/diamond.gif[/img]
I bet ..

[Zeki]

Since you decided to just call down, I wouldn't bet the river I'd check/call, a better hand will raise you which will probably mean that you'll fold, a worse hand like a missed flush might take another stab at you.

[cantsitstillbr]

Why are you betting this river? I hope at least your plan is to bet/fold.

[ChuckyB]

...get raised, call, and villain shows a bigger three pair?