Did you find the content valuable?
I can't imagine not performing the most rudimentary search before opting to pay for a $18 course that wasn't even verified/checked by a lawyer for accuracy (one of the links I clicked on went out of the way to indicate their steps had been indeed verified by a lawyer and even gave his name+photo, assuming they weren't lying).
Regardless - Any project that doesn't cost you more than your time to setup has some value, even if it's just your experience in the process. Best of luck.