My first thought was: Firefly with airships. It has so many of the same elements--a freebooting ship on the shady edge between lawful civilization and the outer dark, a troubled captain and in lieu of a crew, a collection of disparate individuals, each with their own problematic histories, a powerful navy that's hunting them, pirates and gangsters, quasi-human barbarians on the fringes, but perhaps most importantly, it has the same grungy frontier SF feel.
This is both good and bad. If you're looking for something new and original, this may not be the book for you. It does have some creative ideas--his vision of airships are more like an armored Osprey VTOL aircraft, not the standard zepplin image. That adds some new wrinkles I enjoyed, such as airship navigation/combat in 3D. Overall, though, readers who've seen Firefly won't be too surprised by any of the plot twists. On the other hand, Firefly inspires such fierce loyalty from its fans for good reason, and Wooding manages to duplicate those good features.
Like Wheldon's TV series, Wooding fills the book with vivid characters. The first several pages, as the captain shrugs while a loan shark threatens to kill one of his crew if he doesn't surrender Ketty Jay's access codes, are a brilliant characterization. Each of the crew members is interesting in his/her own way, and gets fleshed out and developed as the story goes on. Wooding puts the characters through action-filled adventures and suspenseful dangers, just like he should.
He does add a generous dollop of Steampunk flavor to the Firefly recipe. One of the crew uses magic (watch for the flying demon cutlass). It isn't central, but coexists alongside technology; he even makes the common move of portraying magic practitioners as scientists (or following the scientific method, at least). The plot revolves a conspiracy by those in power seeking more power. And (of course) there are airships, not starships.
Overall, it seems fair to say that Retribution is a very well-crafted, but formulaic book. If you like either of the two formulas he's blending, you'll like this book. I did. If you want a deep and thought provoking literary experience, go read Duncan's Vellum or something.