At the beginning of the Anatomy and Morphology course, we were suggested not to buy this book since it was said to be completely useless or, at least, 10% of what was required to know.
Far from being completely wrong, it turned out that this book was an excellent buy for one part of the anatomy exam in my university, namely topographical anatomy. It contains basically all that is needed to know in order to get that part of the course done. I actually studied topography only on these one, except for a few parts about muscles classifications, a few more detailed parts of the splanchnocranium and paravertebral chains.
First of all, it des NOT contain neuroanatomy. It passes through the topographical anatomy of the cranium, cranial nerves with their courses, the main nerves passing through and around the skull, bones and muscles of head and neck region. It also describes the eye and the ear, but do not expect fascicles, brain structures or brainstem.
For each body region, e.g. the thorax, it passes through surface anatomy (few pages each), division of the internal spaces, the organs, their internal structures, muscles with fasciae, vascularization (lymphatics included), innervation and how to locate structures from body landmarks. Every section has tables and summaries for every mnemonic aspect (e.g. muscles are listed accordingly to their position, compartment and layer, and the origins, the attachments, actions and innervations are provided very clearly; the same is true for nerves and plexuses, cranial foramina, the main vascular trees and so on).
The images are absolutely AMAZING. In fact, in addition to this book there is another product, called Gray's for Students Frash Cards, that actually contains all them without the names of the encompassed structures; the student has to practice pointing and naming them out and then verify the answers with the solutions on the other side of the card. There are also a few images of the development of a few systems that gave me some hints about the embryology (much better than some images on my embryology book itself).
Compared to the Gray's, it is no use for a doctor or for whoever else is seeking the very detail. It is the most saving-time book I ever came across and thanks to it I managed to pass the final exam really yesterday, more than 1 month earlier than most of my colleagues. Another one giving the exam with me yesterday also used this book following my advice. It is like having the Big Gray's, without the too deep details you are not gonna be asked as a first- or second-year student, with the most appreciable quality of synthesis and clearness.
As I said, it is not supposed to be a hand-companion for surgeons. It is only a sort of summary of the Gray's for people approaching the first anatomy examination. Yet it contains lots of useful clinical correlation in small and concise boxes, useful to fix a few fact in the memory and link them to a practical use; but none of true pathology is present.
In addition, it obviously does not contain any info about hystology, biology or the like. A few info are sparse around, but do not contitute anything usable.
At the end, if you are thinking about beginning studying from the Big Gray's, you have my respect and my admiration. However, keep in mind that it would be like studying italian for the very first time by studying the Divine Comedy. You can do it, but you will lose 90% of your time learning and memorizing stuff you will not use until 5-6th year and you will ruin yourself down in the process that would require other approaches. My idea is that this book is the real go during study, and the Big Gray's must be present at hand for whenever you need something deeper (they have more or less the same organization and structure, in fact).