The first volume was great--inventive and fresh. But, as I have read/slogged through the next three, the writing got stale and repetitive. There are five or six unit level fights that thread through the tome and the reader knows the serial number of each round fired. It's too detailed and my brain can't absorb those details and still follow the story. So, I quit listening about an hour into this Vol 5; I don't think that I'll read Vol VI nor will I read any more of this author. The concept of a wartime artificial intelligence was squandered on bad writing. ( )