Some time ago I returned to an old interest and recommenced work as a ground school instructor. As part of the workup to that, I did a full Cert IV course at one of the Melbourne TAFEs. I had no problems with the course content and, for those without anything much in the way of instructional backgrounds, I think the typical syllabus is quite useful. For folks with an extensive background, it's probably a bit of a chore - however, under the present system, it is pretty much a must do item, especially if one wishes to teach in the TAFE system and, more generally, in the RTO world.
Since the 2016 changes, the course is now a minimum of the best part of a year (part time, something in the vicinity of 250 hours face to face time and a fair bit of work in the books and on the net out of hours) and covers far more than what one might see in the traditional PMI style of course.