This was my first experience using flex disc and let me tell you I will not be switching back to tampons. I was a little nervous about this product at first, as with anything new, but I wanted to try this product mainly for the 12 hour wear. I'm a veterinary technician and anyone in this field knows that we do not get a lot of time to be running to the bathroom. This product lets you only have to change it twice daily and once you have it in place you basically forget about it. I know some people said they have struggled with getting it to sit right, but I didn't find it an issue. I've had no leaking what-so-ever. I'm also an avid outdoor person so this product will be great when I'm in a tree stand in the fall and can't really be getting down to change a tampon.
I can't say enough great things about these! Easy to use, comfortable, and definitely has 12 hour wear. I also suffer from extremely bad cramps and with this product my cramps were about a 1/3 of what they normally would be with a tampon.
I have yet to try the mess free sex part, but that's not a reason that I would give these up. Definitely give these a try if you are on the fence about them. I'm really glad that I did.