My niche isn't uncommon at all. I added proper descriptions, keywords, etc.
My results were completely and utterly unusuable. I didn't expect perfectly written copy, but at least ideas.

My first test
As company branding statement it came up with
- love (yes, just this term and it's completely unrelated to what I am doing)
- 6 times the exact keyword I provided (wow, good job, useful, and not repetitive at all!)
- other unusable suggestions and 1 word suggesting as brand essence.

My second test
I had it create a landing page.

The title was my long-tail keyword.
The sub title (directly under the first title) was my long-tail keyword.
One description was (only) my long-tail keyword.

For the most part of this fabulous landing page, it copied a line (my long-tail keyword) into title, subtile, and description.

Well, that's gonna be a conversion booster if I've ever seen one.

And I am not even kidding you or exaggerating.

My third test
Pain/Benefit

Only one idea was half-way usable. Had I clicked on any article of any vendor in my niche, I would have gotten 10 great ideas. The AI misunderstood my clear and precise keywords and description and turned me into a social worker or family counselor.

Test 4
Blog article
I was working on an article and copied the first chapters. It misunderstood the topic, spinned my content into something weird sounding, faintly related, and there's nothing that I can use even as idea. It was lifeless, shallow, strange-sounding blabber you'd get from a low-quality content spinner. English isn't my first language and my grammar is far from perfect. However, it hurt my eyes how strangely words were combined into meaningless noise.

Test 5
Product description
As product descriptions are often soulless blabber anyway, it produced the best results here. Not that I would use them, but they might count as provding a few ideas. I got one idea from it how to restructure one of my sentences to make it more compelleting.

And then I was done testing because my credits (1 code) were nearly used up. The landing page that repeated my long-tail keyword alone costed 8 credits.

I also find the product overpriced. I could never imagine spending $19 monthly for this.

I'm sorry for the harsh comment. But this is JVZoo-ish quality.

I'm wondering if my poor results are related to the fact that I block scrapers from my site and it never had the chance to grab content from my site. It would not be an excuse, though, as I provided keywords, description, or even chapters of text.

Instant refund. I'm still giving 3 tacos as the difference in the results I and others are getting seem way different, and there might be an issue others won't have.

On a positive note: It shows once more, that you can only produce good results if you care. AI doesn't have empathy, and is not good enough yet to simulate it. At least not this tool.