It was useful because it gave me directions on how to deal with the AI era, and I didn't know there were so many AI tools, so I was able to acquire related information. However, before taking the class, I expected to see how marketers use AI to work, but it was a bit disappointing because it wasn't an in-depth example. Still, I was at a loss and scared because of the sudden rise of generative AI, but now I think I know a little bit about what to study and how to use it in the future.