I have read some chapters of this book as a resource of my developmental biology course. In some parts, it was as if a long literature review. This, beside having a thorough overview of all aspects of developmental biology, it has sometimes blurred the major conclusions that can be drawn out.
(One confusion that we, in class, went through was that of molecular mechanisms of left-right axis in vertebrates). Which could be justified by the overall complexity of such a field and the vast ambiguity of its underlaying molecular mechanisms that are still unknown.