I am a real Francophile and manage to visit at least 3 times a year. This canal is another lovely part of a lovely country. So far I have only walked a small section of it in June this year, which kindled my interest in this guide. So I have not yet used it proper (next year hopefully). The guide is very detailed, describing changes in the path surface and its suitability for mountain or road bikes. It pinpoints all sorts of facilities from supermarkets, bed & breakfast stops, cafes & restaurants, even taps to replenish the bidon! This guide is not required to avoid getting lost (even I could follow the watery clues) so why buy a guide you may well ask? Well Watson, the guide is so detailed you can plan stopovers. It tells you where best to cross to the other bank for ease of passage. It also highlights nearby places of interest which you may choose to visit if you are not racing from A to B. And it keeps the interest kindled on long winter nights, away from soap operas and towards balmy summer days enjoying fresh air, sunshine, exercise, food, wine... Nurse! Quick, the medication! He's gone again!
My only complaint is petty and refers to the publisher. Cicerone guides have small pages, being designed to fit the pocket. However around 25-30% of each page is given over to blank margin so the print is forced to be quite small, not crumbly-friendly to those of us fighting the inevitable submission to spectacles!