Assuming you have a car to plug it into, this pump has the best cost-smugness coefficient of any piece of camping equipment on the planet. It really will fill a double air bed in one or two minutes, it's astonishingly fast. Other campers will watch in awe, mouths agape, as it does its stuff. They may even form a queue.
Its lack of power options makes it less suitable for domestic use, but Coleman produce mains-powered or rechargeable versions for more money. If you're planning to inflate an airbed next to a car in a field any time soon then buy this item.