This is not bad alt-history.
First, from a historical perspective, Flint knows his history. The period is depicted very well. There's decided bias toward certain factions in the Thirty Years War but it's a bias that I happen to agree (rather strongly) with, so it didn't bother me. It is also rather strongly pro-American common man (and woman), an attitude that might not be terribly popular in a lot of circles these days given the recent election.
