I have an ARB wired up in the back, I can fill up 4 33" tires from 12psi (what my deflators are set to) to about 35psi in about 10 minutes. The ability to idle up with a tuner is a huge help too.
I had the Canadian Tire one that plugged into the cigarette lighter, took about 20 minutes to air up the same tires from 19psi ish to 35psi. If you want to give it a shot, you are welcome to swing by.