Not related to the concept, but your font choice seems suboptimal. Raleway's a beautiful typeface, but as small, thin gray letters on black background, there's a lot of subpixel rendering artifacts that make it really difficult to read. Example: http://i.imgur.com/Ips6rng.png?1
I'm a little bit skeptical of paying for the opportunity to do "real work for real" companies. It sounds a lot like an unpaid internship (except worse).
In an unpaid internship, you typically get very little professional development - if the company can't pay you, then they probably don't have the resources to have a staffer support your learning either. With Tradecraft, we have paid experienced instructors (with your tuition money) to be there to help you to learn from your project work by giving guidance and feedback. We believe that this will give you the best of both worlds -- the transfer of knowledge that happens in a classroom, the assimilation of knowledge that happens on the job, and a feedback loop between the two.
Disclosure: I'm one of the Founders of Tradecraft
Personally, I think the value here is that you learn from experienced mentors and then apply that knowledge in a real environment. This gives context and helps in retaining the information.
We're particularly excited to have students do real work for real companies, which isn't really possible at Dev Bootcamp. If you're only 3 weeks into Rails, you can't do much useful work, but 3 weeks into sales training, you can do lots of helpful lead generation and learn in the process.