Bought this book as required reading for my UCLA Extension class called Sustainable Communities. Fantastic class, and fantastic book. Whether you're new or advanced in sustainability practices, this is a book that keeps on giving. There's a plethora of great examples from communities (mostly in Sweden) that exhibit sustainable practices and used the tools of the Natural Step Framework to bail themselves out of some pretty bad situations. I also purchased The Natural Step for Business (for another class) and it was also good, but I feel The Natural Step for Communities gives you an even better systems perspective of this method and how best to apply it in the real world.
My one criticism is that I wish there were a greater geographical variety of communities discussed in this book. Since The Natural Step was created in Sweden, it makes sense that it has had the most prevalent impact there. As such, many of the communities discussed are Swedish and at the end of each chapter examples from around the world are given in a concluding paragraph. I think an updated version using fleshed-out international examples would benefit the readers of this book, but honestly you can't go wrong with the version as is.
As with anything in sustainability, there is no one size fits all solution. When reading this, use your abstract thinking skills to apply these concepts and methods to communities of different population sizes, geographical expanse, diversity, affluence, and so on. Particularly here in the US, people would do well to give this book a read.