I have not taken these, but I have worked on the Judaism module twice now. It gives a lot of good and well-resourced information, both broad historical overview and close studies of specific texts. The students who participate as much as they can on the forums, interacting with the material, one another, and the teaching staff, seem to learn a lot. In terms of the amount of content, it's probably comparable to reading a "Introduction to X" book on the topic aimed at the mass market, though with a lot more interactivity.
Two things to note: the series focuses on scriptures, so most of the sections are going to be close readings of important texts. Secondly, the whole series has a particular set of assumptions about religions and how they ought to be thought about academically. I know that we spent a lot of time talking about this and drawing lines for participants, which is sometimes difficult. People have very strong opinions and beliefs about what "religion" is or should be, or what specific religious traditions ought to say and be.