I took this course because I was curious about the exact structure of MSA, and I liked that it didn't just teach how to divide services, but also why they should be separated and what problems arise when they are. In particular, it was easy to understand because I could follow the flow of dividing microservices using real-world examples like User, Board, and Point services, and see how they communicate using REST API and Kafka. I learned that in MSA, data processing between services, preventing fault propagation, and transaction management are more important than simple feature implementation.