Suggestion/criticism: Treasure chest course is too difficult for beginners
Many times I felt in over my head and very frustrated, I often watched an explanation multiple times to get the hang of it. It wasn't uncommon for me to dedicate a several hours to a lesson, I feel dissapointed and burned out. Maybe I should have gathered it from it's appearance but this is also a lot more detailed than I usually work and it struck me by surprise.
Sometimes the way I interpreted advice felt like a downfall and I had to work around it at a later date.
I feel the amount of information retention was low and I was just struggling to keep up. The subscription fee feels like a pressure to do well and a large penalty for being slow to learn.
For the record I am not a complete beginner at 3D modelling but somebody who was comfortable with the basics of Blender 2.79b.