I was shocked at the fact the it took 5 1/2 minutes to fill (4) 33x12.50x18 tires from being flat (took the Schrader valve out) to 37 psi. As far as noise, its not much different than your everyday tire inflator that you get from a store. I chose this compressor based on the fact that this is the only one that i found on the market with a factory 5yr warranty, i did purchase the extended 2 yr warranty, the competition has a 2 or 3 yr factory warranty for about the same price, I went with the longer warranty for basically the same price (little variation)
