I also have looked into this, but I'm still undecided. My friend had one, and she had 3 solid months of spotting after it was inserted! That might not be normal though. She had hers taken out because she felt like the little bit of hormones that it releases were affecting her moods. But really, I think she didn't give it enough of a chance. I think if she would have left it in a little bit longer, her symptoms would have disappeared.
What's held me back is the price. I don't have insurance, and I think it would have cost around $500. At the time we just didn't have the money. But I am curious to hear people's experience with this also, in case I decide to get it in the future.
dani