I haven't yet. He didn't go too mystical with the "Witch of Hebron" did he?
Not sure if he went too mystical, but the series is true to itself.
Not too hard to imagine being less attuned to the corporeal side of life, and more with the spiritual (for lack of a better word) when we're not staring at an LCD all day.
IMHO, worth completing the series. Also recommend "The Long Emergency" if you haven't read it; a bit dated, but still very relevant, especially to people younger than myself, which I assume you are.