The linguistic work is fascinating (but far beyond my capabilities to fully comprehend/critique), and the theoretical innovations are novel: the Pygmy paradigm, her analysis of the first-comer and frontier thesis vis-a-vis Bantu/Batwa relations, and her positing the Batwa as "forest specialists" as opposed to hunter/gatherers. So far outside of my field both chronologically and temporally that it's difficult for me to comment beyond that.