I have always been the dog walker in the family; however, since my husband decided it was easier to walk than do P90X (hah!), I convinced him to walk our lab retriever at the same time. So though I've never used one of these, I bought him one as a gift. The hands-free leash system is the best invention since peanut butter!!  He has used it every day now for almost four months and it still works fantastic!