Whirligig tour of UK during wartime; great range, less depth (on purpose). Good basic review of the period. I like that even with a cast of thousands we return to certain families as the years pass and observe events as they affect people all along the social strata. It does get to feel breathless at times; I'd recommend you take short breaks between sections if your memory is good enough to keep the central families in mind through the break.
Huge respect for how many memoirs, diaries, letters, newspapers, and business papers she sifted through to find great quotes and enlightening stories. I treasure her bibliography and notes ;-) Scores of illustrations; helpful and important to the stories.