[Gracana]

That's my experience as well. If you feed your summary + outline + guidance and prompt a one-shot output, it'll rush through it. If you prompt it for longer length, it'll extend it for little benefit. To get good output, you have to work in chunks, like a paragraph or a scene at a time, adjusting your prompt as you work through the outline.

That said, the resulting quality usually isn't so great that I want to put in the effort to do that, so I tend to interact with it in more of a choose-your-own-adventure way.