It was my first time building a server using something like Firebase, and it was a great experience. As someone who has only ever developed game clients with Unity, the backend always felt like someone else's job, but I started this because I needed ranking and save functions. After finishing the course, I felt I absolutely had to leave a review. I've taken a few Firebase courses before, but this was the cleanest one I've seen. It doesn't just stop at making things work; it points out exactly where the code should be placed, helping you develop a sense for building maintainable structures as you follow along. The Notion syllabus was meticulous, and the code comments were well-written, which helped a lot during review. I also liked that the instructor didn't gloss over things and implemented everything together until the end. The only slight disappointment was the lack of a mail/postbox feature. Since reward mail is almost essential in games, it would have been perfect if that were included. However, I think I can try building it myself by applying the structure I learned. I highly recommend this to anyone using Unity who wants to try integrating a server!