I have used it now going on 4 weeks, the peni master. I have found that I can wear it about an hour, then need to massage, and put it right back on. It does sting a bit after an hour, or when driving. I do wear it more than 8 hours a day, with about an hour rest during. I have noticed a definite difference in the mornings, as it continues to hang lower, and fuller for sure. I am very happy so far with the results, almost a half inch in length in the flaccid state, and definitely from pumping and jelqing along with the stretcher I have made a good gain in girth of over a half inch, that has taken longer than a month for me however.. So far so good.