I've had some success in the past, but I haven't been able to keep with my program long enough to achieve the results I want and I lost motivation. I don't really have a great deal of disposable income right now, so if I derailed a lot I probably would stop using it. I really like the graphs, and by themselves they are a good motivator, so the thought of losing them is a further motivator. Basically I've had a better diet I've been meaning to stick to and an exercise routine that I sometimes did, but this kept me on track and focused on results.