Terrible. It was difficult not only to use it several times a year. Recently I tried to pump air into four tires and the inner tube burst. I think it should only be used a few times. First you have to screw the tube onto the tire, which can be difficult or at least time consuming. The gauge is useless and it takes forever to deflate, disconnect, check with your own gauge and reconnect the hose to continue refueling. I have used this pump maybe 3 times a year for the last 4 years. The tube…