I bought this book as it says on the back cover that it will take the complete beginner through to upper intermediate level Japanese (European Framework B2). IT DOES NOT! For a starter, it only introduces you to about 650-700 words. It also only introduces you to the basic kana scripts and some kanji - but reverts to romanji in the exercises meaning you get very little practice in their use.
According to the European Framework, someone at the B2 level must be able to read and write "complex texts." You cannot read and write anything in Japanese with only a few kanji and the kanas. You will NOT, for example be able to read magazines, newspapers or even children's books after completing this course.
Also, according to the international JLPT standards (administered by the Japanese Ministry of Education), to achieve intermediate level you need to know and be able to use all the 1945 kanji every school child knows in Japan, and you need to understand and be able to use several thousand words. So clearly this book is over estimating the level to which you will progress to using this book - but hey it's a great marketing tool.
The dialogues are very short and filled with English explanations. I had to rip the CD and edit out all the english. That left only about an hours worth of Japanese dialogue left, not nearly enough exposure to get someone to intermediate level. At the back of the book it even suggests you follow up this text with Japanese for Busy People 2. JfBP2 only takes you to advanced beginner, maybe lower intermediate, so again, as they are recommending this book as a follow on study text, the Teach Yourself must finish at the middle beginner level, and that would be about right in my opinion.
Instead of wasting you money (and it is expensive), I would by Berlitz Essential Japanese which costs less than £[]. This book will introduce you to about 800 words, discuss the same grammatical points as the Teach Yourself and comes with a CD of all the dialogues. Also what I liked about Berlitz is that it introduces you to the plain form of verbs early on, whereas Teach Yourself only discusses the plain form near the end of the book which in my opinion is far to late for such an important topic.
After Berlitz you can then move onto "Japanese for Everyone" which does take you to an intermediate level, introducing you to some 2500 words, the kanas and about 450 most commonly used kanji which are used throughout the book in both the dialogue transcripts and the exercises.
What ever you do, DO NOT buy this book! I only gave it one star here because I had too.