This book would be a nightmare for a beginner because it jumps into Portuguese in such a confusing way. It just throws lists of words for you to memorize, and introduces grammar that is hardly even practiced in the exercises.
This book is also very aloof, and hardly forms a "relationship" with the reader. All the explanations are not in-depth. New grammar and vocabulary is just explained with a sentence, and then the reader is left on his/her own.
Here's an example of an exercise:
Exercise 2
Can you remember what the following are in Portuguese?
duty-free, boarding card, departure board, non-smoking, passport control, departure lounge, departure gate
No, I can't remember what they are-all I was given was a list of words!
Compared to Colloquial Icelandic(which is an EXCELLENT Colloquial course), this book is severely lacking, and that is quite surprising. A language spoken by around 200,000 people is taught so much more in depth than one spoken by almost 200,000,000!