[Note: I have read only that portion of the book that talks about relationship between Taurus female and Scorpio male. So, my observations about this book is based on this reading only]
People who regularly read astrology writings are in a better position to appreciate Linda Goodman's [LG] works. For a person who do not dabble much in astrological literature may find it difficult to synch in with her narration style. I read this book after I got engaged to my wife. I wanted to see what LG has to say about this relationship. My finacee is Taurian and I am a Scorpio. I must admit, her observations about Scorpio resembled my nature to great extent.
LG starts out by briefly outlining the nature of each sun sign [her book Linda Goodman's Sun Signs is highly recommended book in this genre]. This is where a reader can compare her observations with him/her self. She then pitches each sun sign with every other sun sign and mixes in the genders and charts out characteristics of such a match up.
Her writings make use of various symbols and allegories. Scorpion for Scorpio, Bull [or Ram?] for Taurus and Eagle, Beaver etc and numerous situation involving them. She attempts to address various [emotional] issues that a pair could face - love, support for each other, joy, hate, arguments, etc. Strangely, I did not find her address 'material life' issues. She restricts herself to emotional aspect of the couple. She uses many short stories to show the reaction of each person in the relationship, if put in a particular situation. This is a great way to say how those people will react in that scenario. A classic example is her description of a fight between Scorpio and Taurian. If a Bull is admonished, it retreats, in hurt and disappointment. But will charge back and gives a fatal blow. Scorpio, before perishing, turns its tail and provides a deadly sting - in the end, causing each others destruction. Such allegories, keep the reading interesting.
Overall, the book is an interesting read. It gives clear picture as how the relationship will evolve. I don't know how much of it will be true. The content of this book is not a guideline for couples embarking on new lives together [strangely, the title sounds like that]. That certainly, wasn't LGs intention. It is a book with her observations, which make an interesting read. Thats about it. I cannot imagine someone who want to read it cover to cover. I can only imagine readers like me, who are interested in few portions of the book, as target audience for this book.