So I played this one some more, and have revised my opinion a bit. I'd say it's on par with Crossworlds so far--much better than Viking Unicorn Buttsex of the North or whatever that last one was called, worth playing if you've been away from the KB formula for long enough for it to seem fresh. Writing varies between excellent and laughably bad/lazy, which was par the course for the original KB too. As far as bugginess goes, it's there, but I've been impressed with how quickly they're updating this thing on Steam. It's been at least an update a day, sometimes multiple updates within a few hours.
Difficulty feels a bit low, but that was a complaint I had with the series in general--with Katauri's original KB, the game could throw up some challenges even on Normal. As the series went on, it got easier and easier, until we're here, where Impossible feels like Normal in the original. Definitely play this on Impossible if you are familiar with Heroes of Might and Magic type games. Anything less is going to bore you quickly.