Pros: This thing is great for quickly inflating sports balls, bike and motorcycle tires. It's small and you can set your desired air pressure, turn it on and go. It turns off after inflating to the desired amount. Cons: It vibrates a lot during use. If you want to get away during operation, it helps to have something soft like a cloth that you can rely on to prevent the vibration from permanently scratching the plastic. The battery life on this thing could potentially render it useless in an emergency. The battery will die if you have to fully inflate a car tire to less than half the recommended pressure. A car tire doesn't even need to be deflated, this compressor can't handle it. So other than that, this item is a good buy. Just don't expect to use it on your car/truck/SUV.