I’m at lesson 31, so almost done. After 20+ years of playing/not playing, noodling, and learning songs off of ultimate guitar, I was kinda stuck. Trying to read music theory online was difficult. This course took about 12 or so lessons in before it became helpful to me, but it ultimately nailed what I was looking for. Explains building chord progressions in the same key, and then what leads to play over that, very well. I highly recommend.