Harry Turtledove's 'Drive to the East: Settling Accounts, Book 2' is a masterclass in alternate history. The way he weaves real historical figures into a completely different narrative is nothing short of brilliant. It's like watching familiar faces navigate an unfamiliar world, and it's utterly captivating.

The book picks up in 1943, with the USA and CSA locked in a bitter war. The CSA's leader, reminiscent of Hitler, adds a chilling layer to the story. The social tensions and moral complexities are portrayed with such depth that you can't help but feel immersed in this alternate reality.

One of the standout aspects is Turtledove's ability to make you care about characters who are neither purely good nor evil. Their struggles and growth feel real, even in this fantastical setting. The gradual shift in the war's momentum keeps you on the edge of your seat.

However, I do agree with some reviewers that certain characters' arcs can feel repetitive. Granny and Dr. O'Doul, for instance, seem stuck in a loop at times. But then again, isn't that how life often is? Not everyone learns or changes dramatically.

The technological parallels, like Asskickers being Stukas and Cyclone bug killer as Zyklon gas, are clever nods to our own history. It's these subtle details that make Turtledove's world-building so rich and believable.

If you're new to this series, I'd strongly recommend starting from 'The Great War: American Front'. While this book can stand alone, the depth of understanding you'll gain from following the series from the beginning is invaluable.

Despite some flaws—like repetitive dialogue and scenes that feel borrowed from his other works—this installment is a significant improvement over recent ones. The plot development and character depth are more pronounced, making it a satisfying read for any alternate history enthusiast.

In conclusion, 'Drive to the East' is a thrilling addition to Turtledove's saga. It’s not without its quirks, but it delivers where it counts: an engrossing story that keeps you hooked till the last page.