totally against the implamon myself
my mood was always really low, and when I went to have it removed, the lady at the clinic said did you knw the implamon is one of the biggest causes in depression but docs wont tell you for of puttin you off it!!
Also spotty skin, weight gain, non exisitent sex drive !
the only bonus for me was no periods at all!!!! But I know of some people who bleed non stop for 8 weeks heavily so had to have it removed!!