Like the rest of this series, this book is intended for self study. This is not the best way to learn a language (get a tutor) but for many people it is the only practical way. For this task, this book is very useful, and the audiopack essential.
The course begins with pronunciation and spelling. The spelling is fine, but I thought the pronunciation part of the tapes should have been longer, with more repetition and drilling.
The next group of chapters emphasizes practical language skills for a tourist in Hungary -- restaurants, stores, public transportation, asking directions, and so forth. This is well designed, with useful choice of vocabulary and grammar. The only thing I'd change would be to add a section on ice cream flavors, since the local ice cream is so good!
The last part moves into a real langauge course. The book and tapes are still thoughtfully designed, but at this level it's really hard to make progress in the language -- you need a teacher or informant so that you can speak. The book has written exercises, and I've made some progress in reading Hungarian, but a book like this can only do so much.
Still, the program as a whole works. I've been able to speak and understand Hungarian in predictable set-piece environments such as restaurants, train stations, and shops. Both the book -- and the beautiful language and fascinating people -- have made me want to do more.