I initially bought this to say thank you for the inclusion of Orchidelirium in the charity bundle. (It looks amazing and we are organising a first session.)
But it looks like it will be a huge help in NPC creation and improvising scenes in games in general. An easily flustered GM thanks you.
I also think the “Tanglegraphs” will be useful in the planning stage of long non-rpg fiction, so thank you for that!