Eisenhower not only commanded the Allied forces that won WWII in Europe, he was "the only president in the twentieth century to preside over eight years of peace and prosperity." (pg 550 of the advance copy) He got America out of the Korean conflict and mostly managed to steer a course that kept Cold War tensions with the USSR from exploding at a time when his advisors regularly advocated using atomic weapons against enemies (yikes!!). At home he balanced the budget and desegregated the nation's schools, and retained a very high public approval. He also seemed possessed of a great deal of luck; so much so that one of his friends said his initials stood for "Divine Destiny."
But it's not without some issues. Smith ends the book with an anecdote of Eisenhower's wife being asked by a grandson "whether she felt she had really known" Ike. She answered "I'm not sure anyone did," and in spite of the tremendous volume of detail included here, Ike remains something of an enigma and I felt a certain lack of depth. Ike's temper is mentioned many times, but we only get cursory examples. Even the war-time affair with Kay Summersby feels like it's kept at arm’s-length. Smith complains in the Preface that "Ike's generalship has often been disparaged" but Smith does the same thing, describing much of Ike's WWII management as a series of errors of inexperience that were rescued by Montgomery and the British. In fact, Smith seems to give undue authority and attention to sniping potshots from generals with axes to grind. (I’m not saying it couldn’t be true and accurate, but it doesn’t have much feel of balance to it.) And readers can be forgiven for thinking that Eisenhower was Ulysses S. Grant reincarnated, since the endless comparisons to Grant grew tiring. (And when a book is 760 pages long it feels like you've lived with that person longer than you really wanted.)
Nevertheless, this is a very good read. Smith highlights many instances where other biographers (especially Ambrose) have ignored or misrepresented stories and facts, and he convincingly corrects them with credible details, and I suspect it might be the best bio on Ike available. It may not have the life and color of David McCullough or the insightfulness of Joseph Ellis, but it's an admirable history of an elusive subject.