You don't get any textbooks, which may not seem all that problematic, but once you finish the course all you have are your notes and epub/mobi versions of the materials. The reason you don't get any textbooks is because of the speed the technologies discussed are changed, but even the materials on-line seem really out of date. To me personally, the content also feels really scatter shot, seems all over the place and quite annoying. Even the guides to activities are out dated and don't appear to have changed so then you have to search for the answer in forum or in my case I spent more time Googling for the actual help I needed as it was easier. It even tells you to use outdated and unsupported HTML tags.
You use something called App Inventor, which is a web based version of scratch. How this is level 2 material I have no idea. This is needed for one of the assignments. Full of bugs and a complete dog to use. It actually deleted my entire assignment question leaving me with nothing on the web version. Luckily night before I sent it I had already downloaded it.
There are a bunch more reasons I can't remember right now but it is by far the least enjoyable one I have done to date.