Mirena has been a brilliant alternative to taking the pill for me. I had it inserted 4 months ago and have experienced no side effects or problems since. I love the fact that you don't even need to think about it. I am a 26 year old with no previous children, I say this as it is often recommended for people who have already had kids. I am married and I plan to stay on it for about three years. The insertation process was a lot like having a Pap smear. It did not take very long however it was very painful (9/10) for about a minute. Afterwards I experienced a lot of cramping and discomfort for the rest of the day. I feel like although it was an unpleasant experience in the long term it is totally worth it. I never had major problems with the pill either however I did experience mood swings and a low sex drive. I also didn't like the fact that I had to remember to take it daily and I would often fail to take it at a consistent time. Since being on Mirena I have rarely gotten my period, (it has been nice not to think about tampons!) I did occasionally have some very light spotting in the first two months. I have been meaning to write this review for a while as I have been very pleased with my experience. I highly recommend it to others my age, it is a sensible, convenient option and I have been a much happier person ever since.