This book was written by Rabbi Lapin, who can be heard speaking on Thy Word Network sometimes. He has written the book to appeal to Christians and Jews and I feel the writing tries to avoid mentioning any conflicts between these two belief systems. As a life advice book, I found the tone to be conservative and logical. It was much in keeping with my own belief system with regard to day to day living. But of course, there was no mention of the hereafter.
While I found that the advice stood well alone, I did struggle with the premise that the wisdom relied upon is found in the "hidden" pattern of the Hebrew language. This is not the fault of the author. I simply lack a reference point to confirm for myself whether the patterns he identifies hold true. I have to "take his word for it" that the patterns are not mere coincidences.
I have come off a year of reading through the Bible which makes most other texts pale in comparison. While there were parts of this book that I didn't quite "get", there were several chapters that made me think to myself "Oh, I wish XX would read this, it would really help them." So there was some wisdom to be found within it's pages. I have even applied some of that wisdom to my own life already.