I have the Charlie Griffith's full 4 condenser system.
Of course, replace all the hoses, add the two condensers in the left rear fender, new improved evaporator, hurricane blower, totally variable speed fan control, and new temp control with the LEDs to tell me if the compressor is on or off, knee vents, and the much improved center vent to replace the butterfly.
Even the little wimpy side vents blow sub 40 degree air when it is 107 and the fan speed is at hurricane speed. When the outside air temps drop to below 90 the temp control is turned way down, and I sometimes had to open the fresh air to mix some outside air in to keep it from getting too cold inside the car.
The real test was at the NM Museum of Space history. My car was just in an open lot, in full sun, for 45 minutes after having being driven several hundred miles. It was HOT in the car when I got back in.
About 120 degrees. It took it 5 minutes to be blowing nice cold 40 degree air again.
It does not match GM air conditioning of the 80s like my 86 El Camino, and certainly not like my wife's 2017 Macan, but is is a few orders of magnitude better than factory stock.
It was expensive, but wort every penny in the insane heat of the desert SW of California, Arizona and New Mexico.