When I bought the book, I was still a beginner. I knew the alphabet, some grammar and perhaps a few hundred words.
I think that the book offers a great selection of the most useful words. In addition, I love the stress indications and example sentences. The example sentences also offer more vocabulary and grammar on their own! You can really feel that a lot of work has been put into this.
I haven’t yet used the flash cards, since I’ve developed my own simple iOS app.
In short: I would recommend this book to everyone. And you can sign me up for part two!
Daan Odinot