If you like codefellows' pricing model, you may also want to check out the hacker academy that I help run: http://www.appacademy.io.
We only charge tuition if you find a job as a dev after the course. Also, we've done this before: 93% of our grads have offers or are working in tech jobs now at an average salary of $83,000.
Companies that have hired from the program include: Facebook, Twilio, Zendesk, Thoughtbot and Carbon Five.