S.C.
I had Implanon put in my arm in June. I am on a medication that I CAN NOT get pregnant while I am on it so this is the method I chose to keep from getting pregnant. I love it. After the insertion my arm itched really bad for like a month. I ended up being on two rounds of antibiotics to clear it up. I thought I would end up having to have it removed but the second round of antibiotics fixed it and it has been fine ever since. My first two periods after having it inserted were really light and now I don't get periods at all. I love it. It is perfect for me. So glad I did it. A few years ago I had Norplant (the 5 sticks) and I loved it too but it was recalled and I had to get it taken out. I was very happy that they came out with Implanon.
Best of luck deciding. I think you will like it.