I thoroughly enjoyed reading this book. Andrew Roberts has strong biases but even if one were to disbelieve half of what he writes, the judgement on the various characters arraigned in the dock, so to speak, must be harsh. George VI was at best a naive fool; Mountbatten - the worst of the lot - was a scoundrel, a liar, foolhardy with men's lives; Monckton was a weak man who allowed trade union power to enlarge dangerously; Bryant had dubious political sympathies.
Sometimes such books can be tiresome because the author so obviously wants to show that X or Y had feet of clay. Yet given the scale of the problems facing Britain in 1940-55, the faults of the men portrayed in this book need to be focused on. Mountbatten comes out of this book particularly badly. First class history writing.