I really enjoyed taking this course! Initially, I was a bit annoyed with the various registrations that need to be filled out prior to the course (at edX, at Piazza, databricks, and one of the notebooks). But after this, everything was smooth sailing. The teachers explain the concepts well and they speak clearly. During the course, we touched various subjects that I am interested in: machine learning, spark, map reduce, python, and MLib. The lab exercices were at the right level for me (I have a solid background in math and software development) and took me about six hours each. I only got stuck at points where I had not read the instructions properly, and the active forum helped me through that. All in all I can recommend others to take this course!
--and of course: many thanks to the people at Berkeley for providing the class--