You can see some of the usual GPT consistency problems. I chose Alan Moore's Writing for Comics and asked it how I should start best when writing a comic. It suggested first thinking up characters and a world, then designing the visuals, then thinking up a story. I found that order somewhat odd, so I asked again if I should start with the story or the visuals - and suddenly it was very sure that I should start with the story, then design the visuals accordingly.
So, I really like the idea, but for now I'm not really sure the answers are always following the contents of the books.
Once the models improve, I'm very sure this will become extremely useful.