If you're looking for an objective and unbiased review, look elsewhere. In the interest of full disclosure, the author is a dear friend of mine and someone who has earned my profound respect and admiration. I think you'll find his writing to be as clever and as concerned with the exaltation of Christ as I know him to be in life.
I've had dozens of conversations with him over the last few years where he has expounded upon the Know Be Do theme and its applications. When I picked up the book to read it, I frankly expected that I had "already heard it all", and to some degree that was true. But the book goes farther than the sum of our previous conversations, so once again I've been confronted with the painful truth that I really don't know all there is to know.
I pray that all who will read this will come into a deeper relationship with God (know), to embrace their position in Christ (be), and will be used of God to accomplish much for the sake of the Kingdom of Christ (do). See? I was paying attention!