Simply terrific! (But I just hated to read of John and Abigail's deaths. They had become dear friends whom I admired deeply.) I'm going to go back and quote some passages in future posts.
Now on to volume one of Dumas Malone's six volume Thomas Jefferson biography Jefferson the Virginian.
And also, eventually, to other books that McCullough praises in the Acknowledgements section at the end of John Adams, including but limited to Elkins and McKitrick's The Age of Federalism.