No-Go works like a charm. I recently adopted a 4 year old pug. His previous owners left him tied up outside all day long. Consequently he had no concept of potty training. I struggled for weeks until I discovered No-Go. Finally the little guy has stopped wetting the perimeter of my couches and pooping on my throw rug. I will say that I have to spray it down every morning before I leave for work to keep it fresh. But it really works! Finally I’m coming home to a fresh smelling apartment and a well behaved dog.