Not that much. I remember the importance of sleep when you're learning (well explained in the course), and also spaced repetition and the importance of recalling the material on your own.
I also remember that the instructors were very good - positive and enthusiastic, and that they explained the concepts very well.
In general, it's hard to remember contents of courses I think. I often try to write a review of the course, either as a blog post, or on one of the review sites (Course Talk or Class Central). The act of deciding what was the most important parts, and expressing it in words go a long way towards remembering better.
I took it after the class has ended, still remember the content. It seems obvious, but it pays to hear and see it reiterated by other sources.
Get enough sleep.
Learn to chunk large bits of information.
Get a high level overview before diving into the small details.
Learn to use things you already know to make connections to new topics.
Don't over learn, cramming in one go rarely works, it's best to study, forget about it, come back at it, it will stick with more exposure. meaning, get the knowledge into your long term memory.
I took this about 2 years ago too, and remember a little about the major topics and some random facts about the instructor.
Its hard to guage how it might help with motivation to get started with MOOCS, but I'd say it's more valuable than all the content just to remember for any topic: "don't believe you know it (or waste time passively studying it) unless you test yourself on it" and "use spaced repitition or you will forget it, but think you still know it."
I followed the course around the same time (i.e. watched and read the material but without doing any of the work).
I don't know that I can recall many specifics, but the most noticeable effect of the course for me was a greater awareness of what state of mind I'm in when approaching a task, how appropriate that state of mind is to what I'm trying to achieve, and how my choice of activities and working methods are likely to shape that state of mind.