My only quibble with this book is that the editing, at least in the edition that I have, is rather poor. There are numerous errors in grammatical structure and word choice, the kind of errors that I have become accustomed to in mass market paperbacks but refuse to accept in a scholarly historical work. Things like "he requested that the Congress name his successor be named in his place" and "...the British ... was ready" and "the New England sates" (rather than "States") and "the House of Representative" (even back then, there was more than one representative in the House) and "the dreary weather proved not be a herald of the months ahead" and many others. I understand that mistakes happen, and don't demand perfection. But there are just too many of this kind of error in this book for me to say that it is well-written; probably two dozen, if I had to guess.
Overall, this is a worthwhile biography of a fascinating president. Hopefully, future editions will clean up the writing a bit more.