Would You Find Value in a One on One Video Code Review Session?

Hello friends - I’m trying to get an idea if this would be a good idea. Let me know your thoughts in the comments.

Here’s the idea (…knowing my experience in web development and programming…)

Would you contract me for a 1-on-1 code review via skype or google hangout?

Here’s how it would work:

Application form takes care of contact information, scheduling, payment, short description of the product, and a way to access the source code.
Once payment is received and schedule is confirmed, I would review the application and check the code out. In a case where I’m unable to assist, I would immediately refund the payment and connect them with someone who has relevant experience.
During the scheduled time, the coder and I would connect via skype or google hangout and share a screen of code. I would listen to concerns or give my assessments of the code. My goal would be to help build a quality, bug-free product while teaching some core techniques.
The appointment would last a duration of 30 minutes.
Afterward, the coder is asked to leave a rating and a review - on completion of this step, they would become available for a discount/reward on their next session.

I understand that this could be tough. Here are the problems I see so far…

Not infinitely scalable - I only have so much time
What is the value of this service - is it the same to each coder?
What to charge?
What to do if a coder disagrees with my advice?
Scheduling conflicts

Do you think this would be a good idea? Or not so much? Leave a comment with your feedback - I’d also like to hear what you think would be a fair price for this service (and what metro area you’re in - because that can make a difference.) Thanks!