I'd probably give this one a 3.5 out of 5. I liked the book and loved the series overall. However, it's probably a good thing this is the last book in this trilogy since it feels like this steampunk series is running out of steam. Each book seems a step down from the previous one. Besides a somewhat weak plot, Goliath features some true historical characters for the first time including Nikola Tesla who gets a rather unflattering portrayal. I would still recommend this series on the strength of the first book alone.