Anyone ever used one?

I am thinking of getting a mooncup, but wanted to know if anyone else had ever used one, and what they thought of it. (All the reviews say its good, but if someone I know has had problems, I will re-think!) Apparently they have been around since the 30's, but I had never heard of them till recently. Also, they are not particularly cheap, so I want to gather as much opinion as possible before I order one.

Dad, don't click on this link, same for anyone else grossed out by 'women's stuff'...

Everyone else, find out more here.