Just got it but man does it work well. My old portable air compressor would take 5 minute to top off my trucks tire that would lose 5 to 10 psi during a cold snap, but not this thing. Big fat tire will be good to go in 30 seconds when its down 7 psi.Interface is intuitive, didnt bother reading the manual. I selected the pressure and flipped it on. Very quiet for such a powerful pump. Not the normal rattle noise I had with the old one before.Its a little chunky to store with the spare, but worth it when you need it.Wire and hose are both ample lengths. I can reach all 4 corners without changing 12v ports inside the truck.