I used it yesterday for the first time and couldn't tell if/when it broke down. I just worked it in for a while, checked my work, and if it showed the results I wanted then I moved on. This stuff has an unbelievable work time and I love how little product was needed once the pad got loaded. I don't know if I was hallucinating, but it seemed to have a faint banana scent to it. It made me think about Dairy Queen sundae's everytime I got a whiff of it.