I got the video for the Zeta2+ coverage, and for intros to stuff I haven't gotten to use yet. So far it is a bit more than just overviews, as he is providing a bit more detail in the explanations, but there are no tips, tricks, shortcuts, or helpful hints like the other "Advance Workshop" videos.
For example, the tutorial videos on XLN's site for AD provide the same (if not a bit more) than whats covered in this set.
If you are already familiar with the synths then you won't find much value. If its new to you, then it is a good starting point.