4 tire system

After lots of research on different air compressor setups (York, Sanden, ARB single & twin, VIAir, Cigarette lighter style, etc.), I found that none of them fit my specific needs. Of the options, I believe the York or Sanden is my favorite, but the cost and amount of work required seem...

Has anyone tried one of these yet? Wheeled with a guy today that aired up 4 tires in under a minute with his power tank. I can do 1 wheel in about 45sec with my tank or 20min for all 4 with my ARB. Seemed like a pretty cool set up. Have heard about the 4 tire systems but this was first time...