I am not even half way through this book (am still working through the rest of the Patterns reference, haven't looked at the last three chapters) and am already kicking myself for not discovering this book sooner. My project that I am currently working on would have benefited greatly from some of the patterns in this book.
Every pattern has a simple, real life example of a problem and a simple solution. One of the things you have to realize about this book is that the patterns are not plug-and-play. You can't just insert the patterns into your project without modifying them; they have to be tailored to fit your project. Luckily, the pattern examples are clear enough that that shouldn't be a problem in most circumstances. I would recommend this book if you want to better organize your code and improve its scalability.
Also, I initially did not realize that there were a few chapters at the end of the book regarding implementing the patterns. The author talks about planning a project using Patterns, and then in another chapter builds the project. I will probably read over these chapters, as I would assume they are good examples of the patterns in action. When I originally wrote this review, I gave the product 5 stars BEFORE I realized these final chapters existed. I was pleasantly surprised by just the reference material. These final chapters are an added bonus in my book.