If I were a practising MFC programmer at the junior or intermediate level, I'd definitely want to have this book as a reference. It is one of the most complete MFC books around, and I like the author's approach of starting off with MFC basics and wrapper classes before moving onto application framework stuff and wizards. This is one of the few books that tells you what's behind some of those macros like DECLARE_DYNCREATE and tells you where to look for it in the source code of MFC itself.
However, if you are new to Visual C++ or have never heard of MFC, this is not the book I would recommend. I would suggest picking up Ivor Horton's Beginning Visual C++ 6 instead. Real beginners need a book that tells them how to use the IDE, debug programs, and use the wizards. So what if after reading it, all that wizard generated code becomes a blur to you. That's what Prosise and other more advanced books are for.
I'm an experienced C++ developer and I had read two MFC books (Beginning Visual C++ 6, MFC Programming by Alan Feuer) and Petzold 5th ed before reading Prosise and I still found it a little difficult reading, mostly because it starts off kind of slow (as someone else mentioned too). The chapter I found most difficult was the one on OLE clipboard/drag & drop.
I really recommend reading Petzold 5th ed before reading this or any other intermediate/advanced MFC book. Petzold is more of a beginner's book for Win32 SDK-style GUI programming.
