I picked this up to fix a hem in a pair of dress paints that I love, and it really did the trick!!  The pants had a hidden seam where the hem was falling out and there was no way I was going to be able to fix them myself.  To take them to the seamstress to get them fixed was going to cost almost what I paid for the pants, so I decided to give Stitch Witchery a try.  Boy, am I glad I did!!  I laid the pants out flat, cut a piece to length, placed it in the seam, and heated with a hot iron (and a damp cloth between the iron and the seam) and the pants are good as new!  No more hem issues, and if they happen to resurface I have plenty of Stitch Witchery on hand to get it fixed up.