I am always very skeptical of these types of products. I attended a Norwex party 2 years ago, and rolled my eyes through the sales pitch. I decided to try a couple products because of what other people had said to me. All I have to say is Wow! I absolutely love the Norwex products. To me, the best products are the micropad and the spirisponge. The micro pad (think Mr Clean eraser but a lot more effective) has removed pen, marker, sharpie, crayon and pencil from the wall with just a little scrubbing. I even used it to remove 100 stickers my kids had stuck on the wood window frame.
FYI...I do not sell and don't have a direct link to someone who does, this is my unbiased opinion
If you have other questions, please feel free to ask.