This is a good introductory textbook for a topic that many people find quite dry - statistics. The writing is accessible and the chapters are of a length that is appropriate for properly digesting one concept before moving on to the next.
Downing and co-author Jeffrey Clark also do a nice job of providing real-world examples and business applications that help make the content seem relevant. They have a somewhat dry sense of humor that pops up from time to time as well, which make the text a touch more entertaining than your average textbook. Given that Dr. Downing is a colleague of mine at SPU, I can actually hear his "voice" and lecture delivery style as I read the text.
I confess that I read this book primarily to understand statistical concepts at a high level, but I didn't do the exercises in the book as I went along. What this means is that by the time I reached the end of the book, I had a harder time connecting with some of the models being presented. I couldn't visualize the concepts as well as I had been able to in the earlier chapters. I am sure that if I had done the work as I went, this would not have been as much of a problem.