It sure is interesting to read everyone's opinions. I much prefer Steam a Seam, even though I have to buy it in small packages. I LOVE being able to move it around until I am sure about where I want the pieces before pressing them into place. The other stuff won't stick on a temporary basis. I have used both Heat and Bond and Wonder Under, but I still prefer S a S. I guess maybe I have never left the paper on overnight. I think I have always continued to work until everything is fused and all of the paper is off. I am so sorry to hear that you are having problems.
Wendy