It has helped us resolve some rather complex interoperable challenges that we've had with some of our customer applications, and saved us an immense amount of time and resource in research.
If you are looking for a quick start to resolving a complex problem, this would be a great place to begin.
Kudos!
It is nice to see that readers are offered many different strategies for interop including both webservices and binary.
In addition, the companion CD actually contains TONS of usefull stuff including all the code, and usefull 3rd party applications.
Truly a must have.