Simple and nice to hear!

It was great that it was organized to quickly overview comprehensive and practical content about backend performance optimization. I recommend it to those who want to catch two birds with one stone: improving practical skills and preparing for interviews.

It would be great if everything could be organized on a single Notion page so we can follow along with the lecture sequence. The EhCache source code is organized in Notion according to the lecture order, but why is the Notice code only available on GitHub? While progressing through the course, Notice-related source code suddenly appeared, and when I looked for it, it wasn't in Notion. I spent quite a while searching before finally finding the GitHub address. I want to proceed smoothly while watching the lectures, but I have to check both Notion and GitHub. If you don't explain how and when the controller, dto, service, and mapper were created, you should at least mention in the "Pre-setup for Class" section to clone the source code from the repository.

It's a good lecture, but it's a bit unkind. From the beginning and the materials could have been more detailed. They do explain the important parts, but there are quite a few explanations that get skipped, so you have to compare with the GitHub code directly to figure things out, which requires unnecessarily much attention during the lecture. If you've learned Spring, it's not a big problem, but I'm giving it 4 points because of the time wasted.

It's good that you provided the necessary information on how to prepare to get a job as a backend developer.

Based on the lecture content, this seems to be a well-organized video on what to write in a backend developer's resume.

I'm really enjoying watching it. Thank you.

The lecture quality is not good.

This was a great lecture that reminded me of things I might have missed when using new technologies.

The lecture is well-organized and good, but the microphone seems bad, so the volume goes up and down, and the pronunciation is too inaccurate. 😭