I went with implanon over mirena for two reasons. 1, I have scarring on my cervix and uterus, and I've had two severe uterine infections, so there was no way I was putting anything up there! And 2, if I didn't like it, it was much easier to remove. I would love to not have to bother with any hormonal contraception, but out of what I've tried so far (this, the mini pill and yasmin) this is the best.