Life changing. Have had to make sure my wife gets there first for years as I'm far to sensitive for lasting long enough for her to get there that way. First time using this it was about 10 minutes to feel the full effect yet some sensation remained. Went from less than a minute on a really good day with limited positions, to just over 30 minutes of a lot of different things and wife experienced some things she never has before. Absolutely love this product and it's been a total game changer. Huge improvements and has made things a lot more fun, exciting, and satisfying! Only wish I found it sooner.