There are some very valuable lessons in this book. The most important, which can be applied to all of life and not only child-rearing, is that it doesn’t matter what happens but how you respond to it.
The other idea that is emphasized in this book is that children, especially infants, need order in order to function successfully within the family. This order is presented to the child so that he will adjust to the schedule of the family, not the family to him. The child is not the most important member of the family and should not be treated as such. These are two ideas that, due to my understanding of human nature and natural family structure, I wholeheartedly agree with.
Unfortunately, I think that this idea can be, and absolutely has been, applied too rigidly. While the baby needs to adjust to their parents way of life and schedule, the child is not yet aware that his parents are there to take care of him and that crying is his only, primal means of communication with them. Not only does a child need order and structure, but he also needs comfort at these times in order to further set him up to be a successful member of the family.
All that to say, I agree in principle with many things in this book, but there are times where her very specific instructions on how to soothe and how to fill the child’s “wake time” seem to not take into account individual personalities and needs.