It took about 40 days from the beginning of the Spring Boot introductory course to completing the Spring MVC and JPA roadmaps! I used to do web development with JavaScript, but when I started Spring, I was at a loss as to how and what to study. Then, after watching Younghan's Spring introductory course, I was captivated by the charm of Spring and unknowingly made a payment. When I came to my senses, this is what happened... In addition to Spring, I think it was good to learn about tips and architectures that I wouldn't know unless I actually practiced them. The best part was that when I got stuck while studying and got frustrated, I could ask questions and they gave me the answers I wanted! So I didn't feel lonely while studying!! Haha. I sincerely thank you for making such a fun and informative course, and when the next MVC 2 comes out, I'll get on the Spring Time Machine again!! You've worked hard!