This is one of the worst language text books I've ever come across, and that includes 15 years as a full-time teacher of languages and many more part-time. Moreoever it is the opinion of others in the class I attended in which we 'used' this book. Unfortunately some courses seem wedded to it.
It is badly organized, introduces new words but does not use them again, with the result that there is no reinforcement, and has no grammar summary. The DVDs are extremely difficult to find one's way round.
Time permitting I could write a whole essay on why I hate this book!
Patricia Tricker, MCIL, Cert Ed (FE), Cert HE