By any normal standard, this isn't a very good book. It's all information, no art, no style, without a whit of entertainment value. It's clearly written for an academic audience of students and scholars who have either no choice to read it or an intense interest in the subject.
However, anyone even casually interested in the life of Augustus and, more importantly for this book, his accomplishments will find a tremendous amount of information crammed into this small book. Every sentence is another fact - many of them interesting facts. The author doesn't stop there, however, and includes virtually every possible fact right down to the smallest possible details that have been handed down through history. If the entire chapter on the financial reforms to the early Roman Empire enacted by Augustus don't test the endurance of the casual reader, then the lists of Augustus' praetors, legates, quaestors, prefects, aediles, and other appointees broken down by year throughout the reign, like the Greek ships sailing for Troy, most likely will.
Clearly, Professor Jones set out to write a comprehensive compendium of the facts of Augustus' life, based on all surviving sources, not at all to create a biography in the usual sense, intended to engage a lay audience with a mild interest in the subject. And he succeeded marvelously.