The dictionary itself simply has not been an aid to me as it would seem the professionals this book should appeal to (i.e those like myself involved in B2B Sales and Marketing) have not been consulted: basic words are just not included, neither are many of the more complex terminologies. It does not appear to cross-reference well either.
Having said all that its diagrammatical and letter writing sections go some way to recompensing the...price tag (although you can glean much of this from your average school French text book).
Not a happy customer, although I will keep the book - if only to see whether I can actually use it somewhere.