The idea of the book is great: each chapter introduces a group of words, and the exercises in that chapter are based mostly on those words, which is ideal for level 5 (there are 2500 words to memorize). The problem with this book is... that there's no cd, and the material you can download from this site or from the publisher's website is not complete, you find only the recordings of the listening exercise, not those of the dialogues and of the list of words, as it is stated in the book description (and until mid-April, you couldn’t find those few files either, even if the book has been released in January).

To make things worse, the customer support from Sinolingua simply doesn’t exist… I have been writing to them many times, and so far I’ve got only one answer (in March, when they apologized and promised that they would publish the files by mid – April). I still don't know if the complete file set will ever be posted...