I used the implanon for almost 2 years, it worked, and it was very cheap..
The good thing was that I used to suffer horrible period pain and very heavy periods for 7 days, the implanon made my period pretty much dissapear and I had barely and pains. But it made me quite depressed and put on weight. It seemed to mimic pregnancy symptoms such as sore bbs and lack of period.. so I was constantly concerned that i may have been utd but I got used to that. It stuffed up my cycle for a few months after I got it taken out which was frustrating when ttc.
I would reccomend it as a cheap contraceptive, but I dont think I would ever want to use it again