I purchased this book alongside a few others to prepare for the TEAS. Compared to the others I used this one was the most organized and easiest to read. I really appreciated the practice problems in the middle and end of each chapter.
The practice exams are significantly harder in this book than any other book, or the actual exam. I scored a 60 on the Kaplan practice exam, in the 80's on the 6 practice exams found in other books, and a 91 on the actual exam.
I recommend using this book the same way I did: for learning the material. If you study with this book, and take practice tests with another you should be well prepared.