It's definitely a very personal choice. I do sometimes get some terminology confused so I may have mixed some things up.
In my mind CIO and what I did aren't the same thing. Yes she did cry those two nights but never for longer than a few minutes before I was there with her.
I remember a girl in my mothers group telling me about her experience at a sleep assistance place and I thought I couldn't have coped with what they were suggesting.
The wonderful world of parenting definitely has lots of views, values and beliefs on all things