I enjoyed the "soft" chapters that dealt with philosophy and concepts. I feel weak when it comes to that, so it was a good read, and an excellent review of where UD is headed and how people who care about it could influence decision makers.
As for the more technical chapters, I am not very webby at the moment, so I don't have immediate use for it. But I know I will re-open this book next time I am involved in a web project.