"amazing!! i have had this since april 2015 and it&#039;s great before the implanon i was irregular, heavy periods with awful cramps that wouldn&#039;t let me walk right sometimes. the rod in my arm didn&#039;t regulate my periods but i have it every two or three months for two or three weeks and the cramps are nowhere near that bad as before. i do experience some weird mood swings but it&#039;s a great way of birth control."