I'm doing it along with Ng's newer courses at the moment and I really like that he focuses on all the basics mathematically as well and not only conceptually which gives you a deeper understanding machine learning imo. However as others have said, the audio quality is subpar and personally I find it hard to motivate myself for the programming challenges in Octave. So my suggestion would be to just view the videos and take notes and then do the newer courses and their challenges.