Has anybody tried Freeze-12?

I read an article comparing this stuff to other available refrigerants and the risk from a flammable gas is almost irrelevant since the oil used to lubricate the compressor is flammable anyway and would be atomized if there was a leak (could start a fire whether or not the refrigerant is flammable). Plus there is no oxygen in the A/C system anyway so I'm pretty sure it couldn't just spontaneously explode the car into shrapnel.