Purchased in 2016, only used once or twice but (unfortunately) managed to use it three times in the last six weeks. losing up to 6psi on four car tires every few weeks. This thing is incredibly slow. The pressure in each tire goes from 26 to 32 in 5-6 minutes. It's loud enough for everyone around to hear, and I've learned to put on noise-cancelling headphones and step away from the car while listening to them Wait 5-6 minutes. I also have to recheck the first tire with a separate precision air pressure gauge as it doesn't hit the 32psi target until it hits 38-40 on the inflator gauge. I never expected inflation speed with this pump, but I didn't expect to spend 20 minutes inflating tires either. I checked the description again and it doesn't list the air flow rate in cubic feet per minute (CFM) anywhere. 150 psi means nothing if it takes two hours. I'm looking for a new compressor that will inflate tires at home (and take the car back to the tire shop) in less than 10 minutes.