I haven’t but have heard it is not cheap.
I expect the price to go up.
HFO1234yf will probably come down with R-134a going up and slotted to be obsolete by 2025. It’s noteworthy, that for the consumer, R-12 originally came in 14 oz. cans then went 12 oz. cans. When it was replaced by R-134a in all 1994 model year vehicles, 12 oz. cans were still the norm. With this new crap
that’s been foisted upon US, 8 oz. cans are now the norm. Spit.