Fast, efficient, high quality, professional, complete. Those are all good words to describe this set. As others have mentioned, I replace a pump that takes ages just to add air to a tire let alone fully inflate it. With this compressor/inflator, you'll never have to go to the gas station or car wash to inflate your tires again. It's fast and efficient. It's built to last - strong and durable. And it comes with all the adapters you need for car tires or other things that need to be inflated. Little more than a supercharger unit, this complete set is well worth the extra cost. You'll be given tools and a repair kit - things you'll need if you run into trouble along the way. I can't say enough good things about this set. And while it's not small, it doesn't take up too much space in your car. I recently bought a new car and have driven it. I will not leave again without making sure I have this kit with me. This is the "insurance policy" we should all have.