This book pretty much delivered exactly what I expected. There were some useful tidbits I took away from it (mostly items pertaining to office related etiquette and attending seminars, etc.), but since I do not do a lot of traveling for business or a lot of meeting with clients, those parts, while interesting, were not relevant to my needs. The book also contains a lot of common sense reminders regarding etiquette, which would certainly come in handy for people who need a refresher!
I will add that it's also a very quick read, and easy to read in short bursts if you're so inclined.