I started my period a couple of days ago and didn't allow myself to buy more disposable products. So, my choices were tampons or Diva Cup. I decided to give this another go, having not tried since my last cycle, and I will say I have had a successful past couple of days. :)
I have figured out insertion, removal... There has been no leaking, comfortable sleeping, and increased confidence all over! And it has not affected my IUD at all and my fear of it doing so has mostly dissipated.