M.M.
I had it briefly (for me, it slipped out of place...my issue...not the device).
Insertion was nothing. I literally felt nothing (I'm 2 kids in, myself).
My doc told me that since I didn't have heavy bleeding before I was on BC, that Paragard wouldn't make it much worse.
I've since gone with Essure, but Paragard was fine for the brief period I did have it.