First off I need to say that I had no leaking which was great!
My problems: (with diva size small)
1. difficult for me to get in - I tried every fold imaginable and it still felt like I was jamming something up my vagina.
2. once I got it in I assumed it popped open (I did not hear anything or feel anything like my friend told me she hears when hers pops open) - I know it says to turn it once it is in, but it WILL NOT turn
3. It feels like it is pushing out against the walls of my inner vagina and gives me almost like a second area of cramps