I'll likely give this a try, as there's a millennial ease to not needing to hire a person specifically. Random different editors reviewing your work is certainly beneficial to a point. But you lose out on the possibility of a relationship forming between writer/editor, which limits the overall value prop for both parties. Basically, you'd always be selling commodity editing services.

Also, the subscription pricing with word limits seems wonky. Why not just go with usage pricing and discounts at higher volumes? (eg. $0.10 / word.) You'd have a much more likely chance of keeping me as a customer if I don't need to cancel when I stop using you for a while.