I learned the concept of Spring by following the instructor and coding, so I was able to understand it quickly, and it was a satisfying lecture because I felt like I was learning the knowledge that I really needed! Also, I had a hard time understanding object-oriented concepts only through text every day and how to apply them in actual code, but through this lecture, I was able to easily and accurately understand how to apply them in actual code and what process is involved! I will continue to run until the end of the roadmap!