As a hesitant buyer I decided to test out this portable pump and was pleasantly surprised at its performance. It inflated my mattresses, boats, and even my tent in no time at all. The auto-off feature was a great addition, as it prevented over-inflation. Furthermore, the compact size made it easy to pack for my sports and outdoors adventures. The only downside was the noise level, but it was a minor issue. overall, a great investment for anyone who enjoys outdoor recreation..See full review