Nothing I'd personally find useful, but that's not the issue, I understand not every product is for me.

Maybe it would help if you included testimonials from people consuming the videos, rather than just producers. At the moment I genuinely can't imagine anyone feeling anything but misled and disappointed upon discovering their "personalized" message was actually auto-generated, but if I'm wrong, I'm wrong. If you have feedback from viewers of your videos (not just sales people seeing demos, actual end recipients) that understand how they were made and still like them, I think that would help demonstrate some positive value.

Edit: Maybe language learning? I wonder if hearing myself speaking a new language would help me learn it.