What features do you look for in a text spinner?

I'm building a text spinner, mostly for fun but also they are darn handy.

And yes I know ChatGPT exists and is great but most marketers like to keep full control of their pitch text and know the exact wording that is going to come out, not some strange sounding AI gibberish. So I feel spinners (eg {example|example2}) still have their place.

What features do people look for in a spinner? So far I'm thinking...

Nested spintax
High permutation limit (up to 1000 outputs)
Download as separate files in one zip file
Max word count and mix word count

What else would be useful?

Spinners still have their place simply because they come with APIs and in bulk they're life savers. You can spintax bulk files (1000s of articles) with GPT but wow good luck with that is all I can say.

I use Spinrewriter and it frustrates me that it uses UK English only. Their website looks spammy af but it's actually a decent, but flawed, product.

Ensure the spinner has an intuitive and easy-to-use interface, especially if it's targeted at marketers who may not be tech-savvy. A clean and user-friendly design can improve the overall experience.