This course starts off easy. When it nears the end, then it starts getting more interesting as we are required to use list, dictionaries and tuples. Prof. Severance does a wonderful job in explaining how to apply the concepts we have learnt in the worked exercises.
The book which he provides for free is very useful to understand the concepts. Along with the assignments by Coursera, I also in parallel solved the problem sets from the book which led to a better understanding. I recommend the course highly !