Sometimes I think I would like to give a book a half star; in this case 3 1/2, but I have opted with four. I did enjoy the book and found it interesting. There were parts that I struggled a bit to keep up with who everyone was. This book mainly covers the presidential years, and is a sequel to "This is My Story," which I should probably have read first.
There were a number of anecdotal stories that she related that were fun to read and to also see her perspective on things. She also gave insights into Franklin's personality, and her role as a president's wife. (e.g. “He (Franklin) had so many outside interests that he was always busy, and boredom was something he never experienced in his whole life.” A shame we aren't seeing more people today with that characteristic!)
In a number of things, I believe she was ahead of her times. I also enjoyed reading about FDR and Winston Churchill's relationship, as well as the visits from and to the royals of Great Britain. And having her sons serving in the war made her just like every other mother at that time in history. If you like history, and particular WWII history, I think you will enjoy this book.