Bests & Worsts Reviews from Amazon

There are so many good reviews here that I hate to clutter it up any further. Here are my points: 1. If you ride a bicycle, you know that losing even 2 or 3 pounds of pressure over time will make the bike MUCH harder to pedal. 2. Similarly, keeping our car tires properly inflated will INCREASE mileage; everyone agrees. 3. Now that cars are increasingly equipped with "Run-Flat" tires, which gets rid of the weight and space taken up by the spare, they are also equipped with "low pressure" warnings. These pop up at the worst possible times, usually in a desert heat wave or winter blizzard. 4. Older pumps made you hold the air-chuck against the valve stem. This one does not -- you screw it on, turn it on, and go away. 5. This unit operates on 12v DC, and 120v AC also. Most other units don't. When running on AC, yes, there is a fan that cools the transformer, not to worry. 6. This was so much fun that I immediately inflated my wife's tires too. 7. This was so much fun that my friend immediately ordered one too, even tho he had an older non-screw-on unit. 8. I suggest sitting on a foot-stool to comfort your aching knees. No more squatting down in the toxic crankcase ooze at the corner gas station, waiting for others ahead of you, and digging for quarters. 9. If you find this review helpful, please click on the "Helpful" button. Thanks.