Ask my mother. She will be the first to tell you. I am stubborn. A few years back she told me, "We raised you to be independent, but you really took the concept and ran with it." My mother has a lot more tact than I do.
Their format works. There are videos, few longer than 10 minutes and practical exercises completed in the web browser. I found myself toying around with a lot of the code in Notepad++ just because I would not loose it and testing out ideas using the Chrome interpreter.
This is in no way a ding on CodeSchool's environment. Rather, I tend to tinker with ideas a lot and this happened to be an easy and readily accessible environment for my purposes.
In addition to the videos and practical exercises, CodeSchool also has a support forum. Use the forums early and often. The CodeSchool staff monitor them and are extremely helpful if you run into difficulty. This can potentially save you hours of frustration.