I picked this book up on a Sunday morning, and barely put it down, finishing it off the following day. Without interruption it could quite plausibly be read in one sitting. I guess this means I found it pretty compelling!
It's also on a scale where the figures are really tiny, being only about 5mm tall. The 'new' model has a figure scale where they end up closer to an inch in height, and is, consequently - though it shows only a much smaller portion of the battlefield - far easier to see and admire. Hofschröer, to his great credit, even addresses such arcane but interesting matters as the different scales and ratios used, in terms of models to actual participants, and vertical and horizontal ground scales.
One of the major points that this book makes, however, and the theme gives the book it's title as well, is the contention that arose between Wellington and Siborne regarding historical truth: as has often been pointed out in regards to generals on the day of a battle, what they say on the field frequently prioritises the need to motivate subordinates as opposed to a desire to be factually correct. And even after the battle, there are myriad reasons why exact truth might be, and often is, the first casualty of war.
 Of course many have now done so. But, as far as I know, Siborne was the first. Certainly he was the first to build such a painstakingly researched model of the entire battlefield.
 I believe Hofschröer has fallen spectacularly, and is now in prison! How the circumstances of that entirely separate and different imbroglio might affect a readers' views of his often deliberately contentious Napoleonic work, well... I don't know?