That's the only course I've taken at Learnable.com, but I'm sure it was the best on-line course I've ever taken anywhere. The instructor, Kevin Yank, has a wonderful manner that is informative without a trace of condescension, and he even manages to squeeze in a little humor here and there.
In summary, I was very impressed with the course, and plan to take more from Learnable. If the other material is as good as this course, it will be well worth the investment -- which, I should point out, is surprisingly inexpensive: a monthly subscription is only $17, and gets you access to all the courses you can handle; if you subscribe for a year, you get a discount.
Any interested readers are invited to browse the course curriculum at https://learnable.com/courses.