I bought this pump to keep my mother in law handy. She's in her 80s and can use it to pump up the tires on her golf cart and car. Set the desired PSI, pull the trigger and the auto shut off will stop at the set pressure. She loves it and it's way better than fighting with a portable air tank. The only criticism is that the hose is too short. Especially when bending and kneeling is required, the hose should be 6-8 inches longer.