I was a bit skeptical when I first heard about this product.  I received a sample in the mail and had to give it the test immediantly.  I worked on every scuff mark could I find.  I found it to be so incredible that I had to go out and buy several of them.  With two teenage boys in the house, things get pretty marked up.  Especially the walls.  This took off every surface scuff I used it on.  The only drawback I found, was that it does leave a chaulky-like residue behind.  You just have to make sure you carry a damp rag to use behind it. … read full review »