15/30 QJoffsuit - Not sure if I should have done this

On a 15/30 table on Party Poker, the first time I had ever played that high a limit. I don't know if I should have done this.
I take seat in the UTG position and decline to post a $15 blind since I'll be in the BB next hand. I watch as a few limpers and player 3 seats to my right raises. Everyone folds to him.

Next hand in BB, I get A6 suited. About 3 limpers and the same player to my right raises. We all call. Flop a 4-flush. 1 limper folds. The rest of us check and call all the way to the river to preflop raiser who keeps firing. Everyone folds on River and he takes pot again.

Next hand in SB, I get Jc Qh. 2 limpers, same player raises so I reraise, knocking out the limpers, so I have it heads up.

Flop is 89T of diamonds, giving me nut straight but 3 to a flush on the board, of which I don't have any of that suit. I check-raise on Flop and lead out on turn and river and take down the pot [img]/images/graemlins/smile.gif[/img]. I forget exactly what he had, but no diamonds.

In hindsight, I don't know whether I should have done that, but if he was going to raise every time preflop, someone had to make a stand. It did work out for me though. Any thoughts?