I've had a hormonal IUS before, not a copper IUD coil.
jfc insertion is painful (but apparently not for other people??!) but not having to deal with condoms or the pill or anything? for YEARS?!
And the success rate is the highest or right up there. I think the arm implant is 1 pregnancy in 2000 couples over a year or two...? Unless that's the hormonal IUS.
ALSO THERE ARE DIFFERENT DOSES AND SIZES. If you're nulliparous (have never given birth) like me, GET THE SMALLEST, holy shit.
Why the flying fuck they bunged the massive Mirena in there, I've no fucking clue. Again: some people feel "mild discomfort" and other people do just feel some mild discomfort but not pain!
But yeah, even with the insertion pain, I'm getting an IUS again soon. It's just that damn convenient and reliable, I cannot lie.
https://helloclue.com/articles/sex/bleeding-on-iud