I currently have a gold sub and already spent about 20 hours on different courses to try and have a total view of what they have to offer. Unfortunately the courses and the material cover only beginner levels and no way near a level where you can work with the topics involved. The level is under the level that codeacademy offers. That being said I would say teamtreehouse is a waste of money for the time being (May 2013). I like the implementation and the topics they pick but the material itself is a joke – sorry!
conclusion: don’t pay these guys until they have some real stuff to teach and share. You can find way better material for free
Hope this helps the next ones like me and save them some bucks.