How do you feel about your Mirena?

I got the Mirena in June. I'm 19, nulliparous (no children and no definite pregnancy) and do not want children, so I figured the most effective contraceptive known to man is a decent bet. How do you like yours? What are your experiences?

The beginning was rocky, and though my period is still put of sync after coming off the nuvaring, I love it so far. Sex with strings attached! Though my next partner will probably be female, I like the potential of lighter periods and infertility.