I haven't bought his course so I can't say if it's good or not. What I'm going to say is, there is enough free guides/tutorials out there that you don't need to pay for courses.
Second this opinion. Many traders that I know of never bought any cryptocurrency lessons. You just have to spend the time to read and practice on your chart. Lots of materials already available on Investopedia or Babypips, if you wanted to look for more.
You can even free many trading videos (course or not) on YouTube, such as DaytradeWarrior. If I were you, I'll not buy it and stick to those free materials.