I really like how the initial courses are laid out. Some fundamentals, then some songs at Level 1 / Easy, then more skill building, then the same songs at Level 2. That is pedagogically ;) very powerful.
Kudos. I'm now at the end of Level 1 and on the first songs. From here on, it is going to be a blast.
I also really like your song picks. So much fresher than lots of other material.
California Dreaming. Paint It Black. Excellent. California Dreaming is such a gorgeous song to work on.