AA set, right number of bets?

Did I put the right number of bets into this pot? UTG is something like 30/20/2, if I remember correctly. I had not seen him do anything incredibly stupid or noteworthy.

Party 3/6 6max

Hero is BB with AA

Preflop
UTG raises, 1 fold, button 3-bets, SB folds, Hero caps, UTG calls, button calls.

Flop AQTr
Hero bets, UTG calls, Button raises, Hero 3-bets, UTG caps, Button calls, Hero calls.

Turn AQT3r
Hero bets, UTG raises, Button calls, Hero 3-bets, UTG caps, all call.

River AQT37
Hero bets, UTG raises, Button calls, Hero calls.

Final Pot 29.5BB