I've been using DivaCup for 1/2 a year and it has changed my life! I spend more time training for & competing in endurance races & triathlons than I do hiking; DivaCup gives me a lot more confidence & comfort in those activities than I had before.
I've only had to use it on one of my hiking trips so far. I wasn't supposed to start until after the trip, but packed it to be safe and boy was that a blessing. I cleaned it w/ Dr. Bronner's peppermint soap, which is what I clean it with when I'm not hiking, also. The little holes can be a little tricky to clean, but it still definitely beats tampons, IMO.
I was on the pill for ~5 yrs and went off 1 yr ago because I needed to rely on it for actual birth control & couldn't take it at the same time each day. We (husband & I) ended up using backup anyway. Condoms are cheap & who was I trying to impress with clear skin now that I was married? So, my acne & cramps returned, but all else was mostly the same as when I had been on the pill. To me it was worth it; I'd rather have an extra $20-something each month and take a couple ibuprofens. Now I can rationalize buying some spiffy gear
ymmv.