I just had my mirena removed after 4 1/2 years in hopes of becoming pregnant. I can't say that I had any complaints about the mirena while it was in, I didn't have any periods ever, I only had mild cramps every 2 months or so, and I didn't notice my mood being affected. However, after having it out for about 3 weeks now, I notice I have increased energy in general and overall I am feeling "better", even though I didn't realize I wasn't feeling great before. The most astonishing thing is my increased sex drive...I'm sure my husband isn't complaining but its like we are newlyweds again! I didn't realize how much my libido had dropped off. I honestly don't think I will ever do a birth control with hormones again, I feel like great now and I don't want to ruin it with artificial hormones anymore.