I have a Coleman mattress and for years I was trying to get by using the cheapo pumps. They worked, but I had to hold them on my mattress just right, otherwise they would just blow everywhere. This one, on the other hand, fits right into the mattress and inflates in the blink of an eye, hands-free. I would have given it 5 stars if it had a tie or something with which to attach the nozzles to the pump, to avoid losing them. I wound up using one of the twist ties that came in the box, but come on; there has to be a better solution.