@afewbugs thanks for doing this.
When I started using them, I did it for cost and environmental reasons. They are not issue-free, but they made things better overall for me. Unexpectedly, they lifted a mental burden: having heavier periods, I would never know how many pads to pack, or I would run out, or forget to pack spares at all. I never realized how much mental energy was going into all that planning. I also felt .. better.. in a way that I suspect might have had to do with reduced exposure to plastics.
Not currently using them as I have a Mirena IUD (thus no periods) but I think it's good to know they are an alternative, with pros and cons.