I cannot speak for the course you have linked. However I can speak highly about courses by The Pragmatic Studio:
They even have a Course on Elixir, which I am grokking while I am typing this response.
The flow of concepts from one chapter to another is impeccable. Examples are great, and they share GitRepo as well, so we can follow along without issue.
P.S. They have free lessons on their site as well, so you can at least see how they teach before investing your money.
