I don't have a partner at the moment, and I don't have any erection problems. I put on Le Roger to enjoy it on my own. The erection lasted I don't know how long, which allowed me to try new things, and the ejaculation was powerful. What's more, I kept it on all day to see what would happen. You won't believe me, but I didn't maintain an erection, I did maintain a magnificent tumescence. I'll try again tomorrow.