Yes it is. I found it by accident and it turned out to be very usefull for an startup. I like his humor and the tutorials are inspiring. It's amazing to see what can be done with only a little work, if you know how. Another tip is to look inside the projectfiles he offers with every tutorial. Often there are some more sequences and variations of the examples he presents.

By the way, R.P.Studios, I saw you're using Cinema 4D. Perhaps you already know but if not: There is an possibility to import C4D Scenes directly into AE. There you can change the lighting, textures etc. directly the space you created in C4D. Perhaps it's another way for you to get your particles set up.