After two weeks of sessions with the Vice at least twice a week and a month worth of sessions with two other prostate massagers ,the Rocks Off's Big Boy & Naughty Boy, I am noticing firmer erections during sex or other masturbation activities. My prostate also feels better and emptier for lack of a better term to use. My orgasms are fuller with larger amounts of semen as well. The intensity of a normal ejaculation is twice what it was before. I am continuing to love this new journey. The Vice is far superior to the Rock Off products!