Gerdi Quist's and Lesley Gilbert's book is an introductory course to a foreign language for someone who doesn't want to spend a lot of money on foreign language classes, has little experience working with foreign languages, has, indeed, little knowledge of their English grammar, and basically wants to get a good working knowledge of Dutch. All the most important grammatical rules are touched upon; however, it could use some more excercises, in my opinion. I would not recommend this book for the scholar or someone who wants to learn Dutch throughly and also quickly, but for the accidental tourist it's adequate. (Though for the latter I would recommend finding a tourist phrase book to go along with Quist's and Gilbert's book, for the sake of a little more thorough treatment of useful phrases.)
The book is decent for the American, but I get the impression that it is designed for the Jolly John Bull. The authors have included a lot of cultural notes interspersed with the basic grammar, along with some comments on such diverse, unlinguistic things as banking, housing, and employment. The phrasing is definitely British, and, Yankee that I am, it's a little annoying. The Dutch speakers on the cassette tapes (also available) are ridiculous to an extent, but maybe it's just the natural sound of the language as I know it to be, a little embellished. I've heard English speakers do the same on English-language tapes.
But for those who don't mind the Anglo-isms, Quist's and Gilbert's book presents the basics of Dutch grammar in a comprehensive manner with a good emphasis on practicality. For its price, (half the cost at Amazon what I paid for it at a bookstore) I certainly consider it well worth expense.