I have read the book and found that it basically covers the state of the art of "classical" reservoir engineering of about the 60's or 70's, with some material taken from papers published in the 80's and 90's. It is outdated to a great extent.
The virtue of this book is that it reviews a wide range of topics like MBEs, IPRs, basic reservoir fluid properties, etc. Good for undergrads taking courses in reservoir engineering.
The statements at the back side of the cover (second edition) are misleading. This book does not contain "all of the information and insight a reservoir engineer must have to do the job right", nor is it "the complete resource for students and professionals in the petroleum industry". This book is only at the introductory level and there are many other books like Dake and Craft & Hawkins which cover almost the same topics with more detail.
If it is an extensive reference book what you are looking for, I would rather recommend the Petroleum Engineering Handbook. It is more comprehensive and can cost you about the same price or less (if you are an SPE member).