The content was decent but made longer than should be necessary. The big problem with that os that the time allotted per session was often much longer than required to read and understand. Often the video would finish and restart well before you were allowed to move to next session. Very annoying due to how often that happened. Also on the technical side, I had to re-login several times even though I was actively following the course. When this happened I would have to redo the section I just completed. Finally, I was interested in which question I had wrong but couldn't quickly find a way to see what was wrong. That is very important to ensure there are no misunderstandings.