Compressor is a nice compressor but they need to update their specifications.. Specifications did not indicate 2 stage, or single stage. When I received the compressor, big Is sticker below the pump indicates high output single stage. I wasn't really looking for a single stage. However the CFM rating is higher than the 2 stage. I did save a little bit of money over the 2 stage, so for now I will keep it. So far it seems to be running pretty well. Manufacturer needs to do something about the metal pulley guard, as they tend to vibrate and create unnecessary noise when running. Is some sort of insulator between the guard and the compressor frame, as well as between the outer cover and inner plate of the guard. Is some sort of insulator between the guard and the compressor frame, as well as between the outer cover and inner plate of the guard. Other than that, it's a nice compressor. I did give it 5 stars because I think it's a really good compressor, however the quality control was a little lacking. There were several loose fittings, and the compressor would lose air quickly. Is. 2 fittings on the regulator, is regulator, were not tightened all the way and were leaking air here. I was able to tighten those, and stop the leak. Leak. I am still getting a little bit of bleed, so I need to check the drain valve on the bottom of the compressor to make sure that it is tight, and that it is completely closed. Please update your specifications to indicate duty cycle, and and single or 2 stage. Duty cycle is important, and one of the questions that I reviewed later indicated it was a 50% duty cycle. Funny thing, motor label indicates continuous duty. I will reach out to the manufacturer to see if they can clarify the duty cycle on this unit.