X2I have the ARB E-Z deflator. It works fine and is easy to use.
And I just have one hose with a lock on type chuck. I don't see the need to fool around with all that hose and fittings just to fill 2 or 4 tires at one time. Now maybe if you have a slow compressor this might be the way to go. My York OBA fills pretty fast. And when I want to fool with hoses I hook up my OBS ( On Board Shower )