I've just read the previous review and feel obliged to redress the balance, having bought this book from Amazon prior to our own family holiday in Brittany this year.
In point 1. his review states that there isn't enough accommodation information but goes on to suggest in point 4. that they get rid of the accommodation details to make way for more information on attractions?! Which is it to be??? Do you want accommodation details in there or not!? What's more, with some 750 miles of coastline in Brittany alone, you're not going to easily be able to cover every beach, let alone every accommodation option or every attraction. That's just simply not realistic.
I bought the book having already booked our accommodation also for a recent family holiday, along with my wife and our two young boys. So, as it happened, the accommodation details were superfluous to us also, but only for that trip. I still found it interesting to read about other places and that information could yet prove useful to us for future visits which we will no doubt make (we had a great time!). Accommodation in the book is ranked according to price and value for money, both things that are critical to many families operating on a budget.
Where the book really wins out though, in my opinion, is in the niche that it caters for. I am not aware of any other books covering the area that specifically put families to the fore. And this is important - our needs are very different to those of couples or single travellers.
The needs of our children are foremost on a family holiday. If they're happy, we're happy. And it's obvious that the book has been written by someone with children as this is borne out in repeated family-oriented references to details that your typical reviewer wouldn't care about (high chairs, parks, changing facilities... that sort of thing). And, whilst the book doesn't cover every place to stay, every attraction, or every restaurant, it does highlight those that may be of particular interest to parents and children. That kind of information is gold-dust and not covered in any detail by other books.
I also recommend the book because of how current it is (published in 2007). Many of the places reviewed have literally just opened, or you get to hear about very recent changes at certain places, so you get a good insight into aspects that books that are even just slightly older simply won't have been able to cover.
If you're thinking of going to Brittany and have children, then go for this book. Don't be put off by the overly-negative review by Poppet's Dad!