I bought this tool thinking it might be helpful in some scenarios for me, but I was positively surprised when I used it to create the first article out of my thoughts and recordings.
I expected it to work well in English, but I was blown away by how good it was with my mother tongue (Serbian). It summarised my words and made them sound even better than the original. The only thing I would recommend is to add some kind of strength adjustment for the styles. For example, the academic style sometimes acts like Joey from Friends when he used a thesaurus, meaning that it uses fancy words even when it is not logical. Setting the strength of the style could fix that.
I really hope they will succeed in being a sustainable business that will help them grow and improve their product even further.