Opponent is unknown, only 3rd hand ever played with him. Pretty standard?

PokerStars No-Limit Hold'em, $1.00 BB (8 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Hero ($97.50)
BB ($24)
UTG ($88.80)
UTG+1 ($102.50)
MP1 ($101)
MP2 ($194.65)
CO ($115.35)
Button ($100.50)

Preflop: Hero is SB with K, A.
5 folds, Button raises to $3, Hero raises to $12, 1 fold, Button calls $9.

Flop: ($25) Q, 4, 3 (2 players)
Hero bets $17, Button calls $17.

Turn: ($59) T (2 players)
Hero bets $45, Button raises to $71.5, Hero calls $23.50 (All-In).