On the whole I enjoyed reading this, and found the coverage quite broad. Several of the Boost libraries that are described I've never used and so I was interested to see what they can do. The thing that I found frustrating was the lack of depth. The examples are fairly minimal as are the explanations. If you don't understand everything from the code and the short explanation, then you have to resort to digging around the Boost documentation, which somewhat defeats the purpose of reading a book. One thing that I must commend is the quality of the translation, better than some books written in the mother tongue.
Book cover image courtesy of Open Library.