This is one of the most useful purchases I've ever made. Although I don't think it's really saved me much time--I guess I'm not capable of doing it that efficiently--or maybe I just leave things to long for a speedy maintenance swipe. For instance, it swears you will be out of the bathroom in 15 minutes--it still took me over an hour. But by God, that bathroom sparkled! And it was really useful in giving me those in and outs on for instance... well, how to clean the toilet... I really found their explanation of tools and techniques useful.