Hi Nick, I have thoroughly enjoyed myself on MOOC's over the last two and a bit month's and especially this Java Coding & Concepts with a Puzzle Ball Game. The Game concept is rather interesting and yes it does make one think. Learning while having fun has the effect that one grasps the concepts so much quicker and they tend to stick much longer as well.
The course material and presentation is really good. What I find interesting is that the content is not very much but it would seem that the material covered is so strategic that it is enough to give someone a kick start too researching and learning further for them selves.
Reading a book or manual can be laborious and boring at the best of times.
I hope there will be more courses covering other aspects of Java. If there are you will find me in the attendee list.