Product works very well. It inflated the tires very quickly and I was surprised that such a small thing could work as well as they did. The device is quite easy to use once you read the instructions and start using it. This is a very handy device to have in your car in case of flat tires or other problems. Definitely a product I would recommend, it will come in handy in emergencies and unforeseen situations. I would recommend this machine as an affordable yet effective way to fill up your tires at home or on the go for emergencies. I liked it so much that I bought it for my uncle's birthday!