I would recommend the peaceful birth immediately and this should also be made accessible to the broad mass of pregnant women. I find the preparation and videos "good" - but the costs are too high for the content in my opinion. Since this is pure videos for all and in this format also individual questions or assistance can not be addressed. The price certainly deters the majority of women, which I find very very unfortunate. I would not want to miss certain content in retrospect, yet the high price is not in proportion to the price.
Module IV has for me personally also nothing more to do with the peaceful birth and a possible addition you can listen to.
In summary, I found it compact and partly but poorly understandable via the videos. By this I mean that I had completed the course and for me was not entirely clear, with what exactly should I practice when and how is the exact procedure in the birth. That is, I had to go back to some videos again and again and write out information, because in the course of the course I always thought, at the end of Module IV is taught exactly - when, what, how, etc..