As other people have identified, the book contains a number of major spelling, syntax and grammatical errors. However, once you get past those issues, it is still worth reading.
The book does not set out to teach you how to use the software; however, based upon the authors experience as a consultant and trainer, he offers some insight into the implementation process and highlights key areas to be aware of. It is clear that he is a big fan of SAP, the product and the company. He also indicates the root causes of many of the failed implementation projects.
I would suggest that if this book were re-written to remove the glaring errors, it would make a good preparation tool to be given to the senior management team of any company that is contemplating going down this route. It could also of benefit to those that will be working on the project.