I am very interested in a product like this even if for just individual use. Your pricing says $49/month depending on "meaningful" changes suggested? What does that mean?
Another good idea is for new programmers in a production environment just having an eye over their shoulders making sure they aren't making rookie language mistakes (simpler ways of doing etc.). Letting official company engineers focus on architectural/roadmap related issues.
This, to me, would be the fastest way to learn as well.