I've been using Blender on and off for about a year, so some of the content was stuff I already knew. However, I found it to be an invaluable introduction to Blender 2.8, because it covers so many new features and changes that I haven't seen in any other tutorial so far. Most tutorials are made using older versions of Blender, and have become outdated because of changes to the interface, removal or re-purposing of legacy features, new keyboard shortcuts, etc, and so I've often found myself constantly googling workarounds since switching to 2.8. Luckily, Zach's course puts all those frustrations to rest. Can't wait to see what else he has in store!