This little gadget is easy to use. You set the pressure you want and hit the power button. I've used it several times, due to bad tire pressure sensor. I figure it's 3.00 at most places here to fill your tires. This will definitely pay for itself in no time.

I was looking for an inflator to keep in the glove box as many times it's inconvenient to find a gas station with a working inflator and then annoying to pay a couple of $$ to use it. When I came across this pump, due to its low price and lofty claims, I was skeptical. I had my doubts it would be even remotely capable of blowing up a balloon, let alone a car tire. Well, this thing actually works surprisingly well and outperforms its price point. I have inflated many sports balls, bike tires and even a tire on my Tahoe. The car tire went from 28 psi to 36 psi in about 3-4 minutes. Its not the most quiet pump you will find, nor is it the fastest; but it fits in the glove box, charges with USB and holds good charge for multiple things to inflate. Sure beats a hand or foot pump for effort required.. So, yeah, I would call this one a success.