I trained with CAPPA. If I were to do it again I'd go with CBI.
My training was so-so. At the time I wasn't apprenticing yet but still working with a homebirth midwife...I learned more from her than I did at the training I spent hundreds of $$ on.
Since I have that hands-on available, I would have done just fine with the correspondance training through CBI.
I absolutely LOVE the work! The childbirth classes fit my schedule much better of course but I love working with women and supporting them during labor.
I think I am being paid reasonably. I have set my doula fee similar to others in the area and also work on a sliding scale (like most do).
It can be tough going to births when you have little ones at home. It's important to set up a support system before you have any clients. And then have a couple back-up plans.