Hero in BB. UTG straddle to $10

MP (80bb) makes it $15 (been falling asleep at table all day, known bad player in room and unaware of straddle). Next to act (250bb) calls. He's been playing tons of pots vs MP.

Hero has Kc 9c. Calls additional $10 (200bb). Whale in straddle (40bb) calls.

Flop ($60): Qc Tc 7o.

Hero checks. Straddle, MP check. 250bb villain bets $35. Hero calls. Remaining villains fold.

Turn: Ko

Hero x/c $80

River: Ko

Hero checks. Villain bets $175. Hero calls.

Villain has been one of the more aggressive at the table but he hasn't shown any hands down so no real tells if he is smashing deck or if he is wild. Initial read is that he seems to be pretty sharp and aware of things.

Any problem with line through the hand?