i've had 4 in total now.
implant 1 was fab. took about 6 weeks to settle then things improved dramatically.
No 2 got infected on insertion - not good. However once that had been sorted no problem.
Implant 3 was a swap again and was fine.
it was removed in april 2007 and eleanor was the result of the removal.
implant 4 was put in in December 2007 in a panic in a knee jerk reaction to Eleanor arriving so early and has just been taken out.
I feel better with it than with out it to be honest.
There is an unproven theory that Eleanor's early arrival may be related to the fact i had my implant out and got pregnant a fortnight later. However it's hard to prove. Just in case i'm having 3 clear cycles before trying again this time.
overall it's been fine. I've had my moments with it but best of all the light regular periods are fantastic. I'm dreading 3 weeks time to see what happens with out it.
Lots of people have problems but apart from the infection on the whole things have been great. The other thing it improved for me was acne i have a face like a teenager again now it's out!
i hope that helps