I'm cool with preflop although I know others will like raising better.
I think we usually have to go broke in an SPR 6 pot with middle set. So I would plan on doing that as soon as possible. No reason not to simply PSB the flop as A
is never folding to a single bet, so might as well make it as big as possible for instant value.
I'd probably bet more on the turn, like 3/4 PSB.
On the river we still only have not even 3/4 PSB left and we have middle set. Even though it's unlikely Villain should have two pair here (apart from KJ), I still think we get paid off by worse (22) and Kx might make a hero call putting us on the barrelled busted flush draw. I shove.
Gunluckyifrunningintofloppedflush,imoG