It was good, but I felt like I wanted more.
The flyleaf implied there would be "fascinating detail how this campaign molded the climactic battle for Europe." I don't feel that it delivered. Maybe I've read too much WW2 history to be surprised anymore?
There is an appendix for wargaming the campaign, and I'm a wargamer. I was surprised to see that only one game was used, and that from 1977. The multiple plays of that game offered only a few insights, though those certainly rang true to me.