My Take
I like the way it gives exercises and it is best to give home-work to students. Students can use it better by advance learning too. It was very basic and descriptive course so teacher intervention is also not required.
How I Use It
I used it to teach subject more interactively. It worked quite well. Students were eager to learn more and attend lectures due to innovative approach. I suppose everything worked well and there was nothing which would be a disappointment's.