I thought about it once, decided against it. Tried making 2 videos wasn't happy with, and so I kept that idea shelved.
But the idea itself sounds fun. If you do LN or Web Novels, then doing Novel or arc reviews is probably better than chapter by chapter.
People do tend to be less into it, cause well, there isn't much visual stuff going on. If the story has a manga, comic, anime, etc, you can put more image in to make it entertain for the general audience.
I say make 2~10 videos, after that decided if you want to keep it up or not.