Very good course for anyone looking for a taste of what programming is about. The content has been carefully created to give a thorough introduction of python, and in no time, they get you going doing some very interesting projects. The feeling of succeeding at a mini-project and showing it to your friends afterwards is highly rewarding.
For the instructors I have nothing but praise. Both prof. Scott Rixner and prof. Joe Warren excel at making the whole process both useful as a learning exercise and engaging. They skilfully delve into the more difficult concepts and to soon after, jump-start the student with a fun exercise to put those concepts into use.
Regarding coursera, while flawless in computers, it is a pain to use in Android or iOS in the iPad. Whole sections will not load (such as the mini project pages), a change in the screen orientation (in Android) will refresh the app to the landing page.