One of the worst history books i've ever read, I got it as a text book on a university course i'm taking on the Greek world and it is one of the most atrociously written academic books i've read. At times it's very difficult to understand because he seems to not have a decent grasp of the English language, it's not concise and yet lacks lots of relevant detail, not to mention that it's incredibly dull (how one makes the Peloponnesian war and Persian invasions dull is beyond me but Hornblower manages it with aplomb!!!).
I really wouldn't recommend this to anyone, despite the other books in the series being excellent (Amelie Kuhrt's Ancient Near East is great!), this really is terrible, please do yourself a favor and buy one of the multitude of other books on the topic.