Ask IH: Feedback on Twain -- Copy-editing-as-a-service

I used to work with copy editors to create blog content at my last startup and found the value to be well worth the cost. As an indie developer again, it's hard to justify hiring a copy editor and my needs for editing are highly variable so it doesn't make sense to contract a freelancer either.

I decided to put up a landing page for a service idea called "Twain":

https://www.twain.app

It's essentially copy-editing-as-a-service. I just launched the landing page and am testing the viability with some AdWords ads. My target customer is content marketers who want to increase their reader engagement but don't have the time to recruit and hire a professional copy-editor.

I'd love to get feedback from IH if anyone has thoughts to offer. Some specific questions I have:

• Does this idea seem viable? Do you know anyone who would use it?
• Am I targeting the right market? There are a lot of users who might want proofreading or editing services, but I'm focusing on content marketers right now.

Thanks!