The Bissell Steam Mop cleans so very well, and so quickly.  But attaching the mop pad is next to impossible!  After a few feeble attempts, I called the 800 number, and the person answering suggested wetting the pad first so it would stretch more easily over the steam head.  They also sent a couple of FREE pads!  Trying the wet pad system worked a tiny, tiny bit better.  It's still a terrible struggle to get the entire pad flat on the surface of the steam head.