For years I have pumped up airbeds and kids toys using a foot pump, and I just thought it was inevitable that it took hours of effort. Then I spotted one of these, and it's fantastic. A Ready Bed that took 10 mins to pump up by hand literally took 10 seconds with this pump. I couldn't believe it!
The only down side is that the adapter provided is a little large for small valved toys, but as I bought this for a camping bed (about 1 minute to inflate a double mattress), that isn't a deal breaker for me.