According to me, there's only advantages to not have to use tampons and pads. I convice all my female friends to try a menstraul cup cause it's simply the best!
I think you are awesome. Both with your product that changes life, mine included, but also everything you do to spread information and knowledge.
It doesn't leak at night as pads do, it's cheap and environmentally friendly, but mainly that it doesn't dry out my mucus membranes and doesn't contain bleach and pesticides that I don't want anywhere near my uterus.