Has anyone converted their dash air to 134 from R12 and what were your results?

I did. Results were ok, usable. Advice stay with R12 if you can get it. Cools better.

Our Bluebird dash ac was converted and worked fine .
Also , both of my 1986 Ford trucks were converted and cool really well . The 134a is so much easier to obtain . The r12 substitutes work well too , but they are basically just propane .

I have 25lbs of R12 on hand and was going to sell it.
I guess I'll use it.
Thank you for the input.