It is easier to get an LLM to tell an unusual story using the most popular phrases than have it tell a common story using off-kilter uncommon phrases.

The big arc is easy to get using an LLM, getting it to do the details correctly, that is the actual hard part. So in my cases I (by other people's account a legendarily patient person) lost my cool trying to get a LLM to write CSS in a way that makes any sense if you have a design background. I ended up rewriting the whole CSS by hand, because it is inconsistent, piecemeal and just doesn't make sense. Yeah let's make everything bold and important. Yeah let's write internal implementation details into a label in the UI.

I decided to use LLMs as an aid to my own thinking, not as a replacement.