[sanderjd]

Totally agree, for myself.

However, I do know people who are not native speakers, or who didn't do an advanced degree that required a lot of writing, and they report loving the ability to have it clean up their writing in professional settings.

This is fairly niche, and already had products targeting it, but it is at least one useful thing.

[bluGill]

Cleaning up writing is very different from writing it. Lawyers will not have themselves as a client. I can write a novel or I can edit someone else's novel - but I am not nearly as good at editing my own novels as I would be editing someone else's. (I don't write novels, but I could. As for editing - you should get a better editor than me, but I'd be better than you doing it to your own writing)