While I did not learn much, in terms of actual syllabus, I did get exposed to a refreshing teaching style of exploratory learning.
It helped me learn how to learn, how to approach a subject or problem, how to be confident as a learner.
I have never looked back. Today, I am confident that I can learn any subject, with the right books and practice. That confidence helped me grow as an engineer in my job.
Even today, I view these courses and new ones all the time.
An added side effect was the opening up of learning resources from Stanford, Yale, etc.