I think I like this more as source material to build upon rather than enjoying it in its purest form. It’s a wonderful collection of children’s tales and I like how the absent qualities are literally there all along (and even unaccepted when confronted by the Wizard).
The hero’s journey contained within generates an almost painful last act which feels unnecessary. I miss some meat on the bones in general. That comes with the territory maybe, but I can see why the setting itself has spawned so many spin-offs and interpretations. So much is left open that you can’t help but reimagine Oz, which is most likely the book’s intention.