Horrible. Narrating obvious things for too long and skipping essential stuff. This whole tutorial needs to be redone by someone else.
Actually, besides the neglected section on how to set up the controls in the bones hierarchy, this is a very good and summarised overview of the UE rig system. good job.
and if you want to follow along you can download the rig from the marketplace (https://www.unrealengine.com/marketplace/en-US/product/control-rig-mannequin) which is almost exactly like what is shown in the course.