This book was easy to read, well-organized and I am not saying this because one of the co-authors is the director of the writing program in my law school. I liked the examples, as well as how the authors carried on using the same examples for several exercises.
Maybe my only word of caution to future readers is that you may want to supplement the book with something that would teach introductory legal research. This book zooms in on writing and not research methods.