It’s an amazing class and I recommend it to absolutely everyone and anyone.
Personally, I got about 2/3s of the way through before ‘life happened’ and I was forced to stop for a few weeks. When I got back to the assignments, the class had ended and the forum activity consisted of a very small number of stragglers (like myself) completing the class on their own. Doing a MOOC after it’s officially closed isn’t as much fun. All of the discussions and interactions with instructions are a hugepart of the experience, but that did not detract from the quality of the content or my ability to get really good information out of it.
If they run the class again, I strongly recommend taking part – it’s well done and the topic is extremely important.