I used this book as a quick reference to Spring 2.5 for use on a recent JSF project, and was thrilled at how easy it was to find exactly the information that I was looking for.
With JSF and the application context being my focus, I only read about a third of the book (chapters 1 through 4, 10 and 11).
These chapters detailed exactly what I needed to do to get Spring 2.x up and running with JSF, including how to use it instead of the JSF managed bean creation facility, and how to unlock the request/session scopes.
The chapter on the advanced features of the Spring container is particularly interesting as it clearly portrays the number of ways Spring can instantiate a bean (viz., using a constructor, a static factory method, an instance factory method, from a static field, from an object property, or a factory bean.) Also noteworthy are the Java equivalents that are provided for each of these instantiation methods, making understanding the differences a no-brainer.
There's also a wealth of information on multiple approaches to achieving the same goal (e.g., injecting references using the ref element, using ref attribute of a property element, or using the p schema), with clear indications as to why one might be preferable over the others.
Really stretching for a con here - the recipe approach felt a bit contrived and unnecessary. However, the quality of the writing is beyond reproach, and more than made up for any discomfort I had with the topic structure.