I got this from one of my friends because I just kept talking about how badly I wanted to try it out and I just hadn't gotten around to getting one. The minute she gave it to me I went right to it. I didn't find it hard to work or use but it didn't give me any of the results it said it would in fact it made my heels far worse so I was like OK let me keep going to make it better. By the time I was done my heels looked worse then when I started and they kind of hurt so I just stopped. Do yourself a favor soak your feet and use a pumice stone.