I am anti Mirena now. I had mine inserted to help treat endo and it's been nothing but a nightmare since I had it put in at the start of December last year. I am having it SURGICALLY removed via D&C and hysteroscopy on the 24th of this month because when I went to my gyno to have it removed (because of the constant pain and bleeding I had, not to mention the bloating - I would put on up to 4kg during a bleeding session and lose it all when I stopped bleeding - which could be anything from 1week to 2full weeks of bleeding and just a general feeling of having no control over my body anymore) he couldn't find the strings because they had moved up into the uterus and the Mirena itself is pushed against the wall of my uterus and I have some scar tissue forming around it (I had to have a trans-vaginal scan to find it). So yeah, bloody wonderful for me. I have also just finished another 2 weeks of bleeding, my sex life is non existent (I honestly can't remember the last time we had sex) but hey, millions of women love it so its up to you to decide.