I did this unit as part of my MD scholarly. The unit is coordinated by Tom Briffa and is overall very well run. There is some weekly content consisting of lectures and tutorials which are of reasonable depth and quality. Assignments consist of a midsem, a research assignment (with SAQs), and a final exam. The content is actually quite enjoyable and taught me a lot about Epi. The final exam is a bit of a crunch in terms of analysing a research paper - something I found difficult to do under time pressure. Overall, if you are used to coursework at a postgrad level, this unit is of a fair difficulty (for busy people).