Ok - you're definitely going to get something out of this book that will help you with your web copy or other marketing blurb. For example I'm using contractions here like "you're" instead of "you are" for the first time, and no doubt you're finding it a pleasant read, right?
If you're selling what I call "dream come true" products or services like loose-weight-in-x-number-of-days, or increase-your-sales-by-X% etc, then Maria Veloso is the guide you need, and her book will be perfect. If you're selling a product that requires a more conservative style, or to a customer base that is turned off by such marketing, then in my opinion you'll get less out of this book. Almost all the examples appear to me to be of the, slim quick/how I made my first $15m/Masters Degree in 18months style. I believe however, that the theory in the book - and there's lots of it -is more widely useful.