I happened across this book in the University of Wisconsin bookstore and picked it up hoping it would expand on things already covered in Boehm's work. As a book, it isn't so great.
However, the software it contains is one of the most usable cost estimation tools around - if you need that kind of tool. In many cases, I've gone through the process that this software shows with other people who bought the tool outright (it's expensive if you're getting it as a single user - if you're buying it for corporate use, it's quite a value). The software is particularly valuable if you're a novice at cost estimation, since you can experiment with different lifecycles, documentation standards, and environmental factors. From this standpoint, the Marotz tool is an excellent educational device.
In short, if you need a software cost estimation tool - download
the free trial version from Marotz and try it out. This book
by itself is probably promising too much.