It took me a few tries and two hands to get a good seal. This is a bulky product and may be better suited to a commercial environment. The smaller and simpler the better. It's just disappointing because I check my tire pressure when the weather changes and it's not as easy as I was hoping. Correction: It becomes easier to use after some use. The pressure gauge reset valve is practical. Requires 2 hands to use effectively. It's easy to read and the dial rotates, which helps.