The lecturer of this course is by far the best of all I've seen. He's passionate, engaged, and his enthusiasm is contagious. His presentation of history is interesting, detailed and very easy to follow, you will only have problems if you've got very bad memory, haha. I rated the difficulty of the course as 'medium', but it should probably be 'easy'. Still, I decided to rate it as medium b\c saying it's 'easy' sounds a lot like saying that it's simplistic or not detailed enough. And it's by no means simplistic, at least for a beginner.
The course is very popular, with many people in the forums (at least there were a lot at the time I was taking it), these people discuss a lot of stuff and bring up interesting topics. Even the lecturer himself participated in forum discussions sometimes and of course he talked to us via office hours. Check out the forums if being actively engaged in a community while taking a course is pleasant for you, it's probably still going strong.