I just used it on 4 texts. The 1st version was the output from my first (chatGPT) prompt. The 4th was the last prompts of "reduce, make it less AI, etc" of the same original request/output.

In all cases it was meatbag. In the 1st case gave chatGPT 0.35. The remaining ones were much lower.

EDIT: I didn't ask just to generate some text. The original prompt was very specific, which is most of the time the way I use LLMs anyways. Probably it catches better the "hey just generate this email...".