I thought I would add my two cents worth. I have had one for a year. I love the fact that I don't get terrible cramps anymore and when it was that TTOM I would get this really tight upper abdomen bloating thing happening which was really uncomfortable. I have been tested for endo and PCOS and all came back fine.
Unfortunately, though I think it causes terrible itching and dryness for me down in the private parts and for some reason in the last few months, cramping and spotting has come back and sometimes it can happen 2-3 a week. Also the tight bloating is coming back when I get the cramping. The itching happens mainly at night so it even is harder to sleep.
I also noticed that I am getting skin discolouration on my forehead.
At one thought it caused depression, but any depression symptoms have lifted. I got depression around the 6-month mark, but I think it may have been from other health issues. The depression didn't last long 2-3 weeks.
So I am going to go to the GP to see if it has moved. I really want to keep it though, because the monthly cramping was terrible (and caused my IBS to be triggered) and I really can't take painkillers as they cause stomach issues for me, increasing food sensitivities and gastritis. I'd rather the itching a slight cramping over going back to major pain every month.