The "business guy"-averse part of me cringed throughout at statements like "there's no room for modesty." The book helped me find a bit of clarity and a few ideas to embrace, while helping me discover some of my own boundaries as well. (I just plain won't be email blasting people or shoving testimonials down their throats.) Could have been a much shorter book, could have done without "my clients range from [big number] to [bigger number]" with the numbers always changing. But useful nonetheless: a business owner needs to be in touch with the value that's being provided from the client's perspective, and can only grow by making sure the client knows how to buy more of it.
At the end of the day though, I don't want to add testimonials to my customers' hold music. I'd rather figure out how to keep them from having to wait in the first place.