As one who has been studying the science of midwifery for three years, I can say that I have loved this book! There are many reasons for this love:
1) HL&B covers nearly every conceivable obstetrical topic succinctly yet thoroughly. If you want the low-down on anything from umbilical cords to breech delivery to sacculation of the uterus, this is the book to go to! You won't find any extraneous content: this is a textbook through and through - it cuts to the chase!
2) I appreciated the author's comprehensive coverage of medical options. A lot of textbooks (esp. nursing texts) are of the mentality "when this happens, this is what you do" whereas this book presents all options for treatment management (even though you might probably end up doing what the nursing text says!), as well as prognosis info.
3) The illustrations (hand-drawn) are immensely helpful and quite plentiful.
4) HL&B is compact (1.5" x 6" x 9"), so when wanting to study on the go, this was the definite choice.

The only drawback to this book is that it is a paperback (I am unaware if it is available in hardcover). Notwithstanding, I would highly recommend this book to anyone studying obstetrics at any level.