It's time to upgrade my 10 year old pump that has been inflating tires for ages. This 20v portable car inflator is a game changer for me. Not only did it inflate the tires quickly, but it pumped them up to the listed PSI which I dialed into the inflator. Here's what I like: 1) Quality design and construction. The device doesn't look cheap. 2) A storage bag that fits everything that comes with the unit, plus extra space for extra tools you might want to take with you. 3) Battery Operated - This inflator can be taken anywhere thanks to its 20v battery operation and also has a cigarette lighter socket to use when the battery is low. 4) Dial-in PSI takes the guesswork out of knowing if you've inflated the tire to the correct PSI. Did I mention how fast this thing blows tires? Watch the video to see. 5) Bright LED light that can be used when it's dark. The only thing I can knock on this unit (and it's a minor thing) are the clamps that hold the tire inflation hose. The clamps can be slightly narrower to ensure a more secure fit on the pipe. The hose kept falling out of the clamps during storage. For me, this issue is minor as it doesn't affect the overall functionality. I highly recommend this device and look forward to using it for years to come.