My mother got me a pair of their high-waisted underwear a couple years ago, and I still use them just fine! They are very flattering, and I have always wanted a pair of regular underwear that looks just like them. I know you aren't supposed to put them in the wash, but I always do, and they have still worked for me after about three years. I do not have a flow at all due to birth control, but I do have significant enough spotting around my period that it would ruin underwear. I do not like the feeling of panty liners or pads, so this is a perfect fit for me! I don't feel like I'm wearing a diaper, it is breathable, and I've never had any pants ruined while wearing them!
I do know that there is concern right now about PFAs in these, so I have not bought any additional pairs. Also, they are pretty expensive, so I see them as an investment piece. I wouldn't recommend them to a friend right now, but if the PFAs thing was sorted, then I would.