Don't forget to check the power setting on the power supply, check psi on the auto shut off, and double check the fill hose connection its hard to get it properly attached. First fill 0-2000 psi in 4 minutes with no issues. A little vibration but all in all not too bad. The unit runs much cooler than I expected. Don't forget to use Airgun Nation's discount code on the home page-Look for the Crosman banner ad to save a bundle on the compressor.