Spot on. There's something about his approach to documentaries that really resonates with me. I'll admit I'm not super well-versed in documentaries so maybe his style isn't that unique, but I suspect it is. The only other film that's had the same effect on me as a Herzog documentary was Joshua Oppenheimer's The Act of Killing. I would also highly recommend Herzog's early film, Land of Silence and Darkness (1971) which shows he had the magic very early in his career.