We had a very difficult time deciding if we wanted to purchase the WeVibe3, but our local store owner assured us that we would enjoy it, and we caved on the day of a sale. When we tried it out, it fit perfectly on her (on the clit stimulation end), and it seemed to stay in place without anything inserted in her. She sounded like she enjoyed the sensations, and we soon moved on to penetrative sex. While inside her, it seemed that the clit stimulation end was pushed a bit out of place, but if she or I held it in place, she was able to enjoy both stimulation ends. I (male) was genuinely surprised with how much of the vibration I could feel and moderate pleasure it supplied. So far, I have not had an issue with condom friction, but we haven't used it extensively yet.