I, too, was told, only good things about mirena. I got it after the birth of my son, and had previously had a copper IUD, with it, I still gt my period, but no worse than before. Since getting the Mirena, I'd gained over 30 pounds (with no change in activity levels or diet), and have experienced frustration, depression, and am very self-conscious of this-from being asked if I was pregnant again, etc., as this make a very big difference on my 5'2 frame. I also never regained my libido. My gyn, Just told me last week that loss of libido can be a side-effect of mirena. My periods have been lighter, but still have the emotional side effect. I'm going to check with my ins to see if it will cover having it switched back to the copper one. I'd gladly take a period, than go on like this (as you can imagine how its affecting my marriage.)