> The comment above literally said this took them 20 minutes of prompting. That doesn't sound like much if any value add.

You can say much the same about most small SaaS products of the last decade - the value-add isn't the 20 minutes of prompting, it's that someone else has already tested and validated the damn thing.

And yes, you won't sell many to engineers, because they'd rather prompt their own in-house version. But you might well sell to other folks