I've heard that cups take a couple of cycles to get right, but the very first time and every time after that I used this cup, it went in perfectly, no leaks at all. I have always leaked with tampons and had to wear pads with the tampons. I was shocked at how easy they are to use and not as gross as I thought it would be, at all. It made my period way easier and more comfortable. I should have swapped to cups years ago.