I have used the Nuva Ring birth control, so the concept of this didn't throw me off. Although it was a lot bigger than I thought it would be, and it took a couple of tries to get it right.
It failed. Horribly! I had it in for maybe 5 hours and then I just knew it wasn't doing it's job. What a horrible mess. It had leaked inside and pulling it out left my toilet area looking like a murder scene. Sorry to be so blunt and gross, but it was terrible!!