The instructor of the course also runs a youtube channel where he covers the same content, but caution the biggest difference in the course on udemy is that it is done with the students time in mind. The youtube channel goes over the same stuff that the course covers(more in some cases) but the lectures are longer, the material is presented in detail and you have to sit through it. The benefit of the udemy course is that Todd gives you the same quality lessons but without all the filler in between.

His channel:

https://www.youtube.com/user/toddmcleod/