KQ to river flush scare...good or bad play?

[infinity235]

Turn play was pretty bad here. Putting in less than half-pot allowed flush and straight draws to call profitably... either check behind for pot control, or bet pot. Checking behind might induce a bluff from weaker hand, even though that river card was pretty bad for you.

River call is marginal.... this is flush or straight much more than 35% of the time.