A slim work, at sixty pages, and a pleasant read. I enjoyed it sitting on my house deck on an afternoon and occasionally tending to the watering. I think this book would be most entertaining for the experienced diver who has already encountered some of the problems discussed.
The authors sometimes come across as self-indulgent old fogies, sometimes as twenty-somethings unafraid to sprinkle profanity in their writing, and sometimes as simultaneously thoughtful, sarcastic, and humorous, in the best possible way. In that last case I was reminded of Benjamin Hoff's "The Tao of Pooh". The Jacobsons can be similarly witty and focused.
I most enjoyed Chapter 10, and its detailed instructions for making up good dive stories. And the "Scuba Snobs Quiz" at the end made me chuckle - I administer a lot of multiple-choice quizzes in drive training and I'd love to sneak a few of those questions into the standard tests.
I think every liveaboard should stock a copy and leave it on a coffee table. On some of my trips I would have enjoyed highlighting a section or two and leaving it in another diver's berth. The Jacobsons are apparently less confrontationally challenged than I am.