I studied with English subtitles and English audio, and I'm leaving a course review. While it includes Spring Data JPA, this course allows for a deeper understanding of Hibernate. I recommend focusing on the test sections in the example code. You can gain a deeper understanding of how things work, moving beyond just using them off-the-shelf, through the example code and lectures. The course content can be usefully applied to performance improvements or problem solving. You might not always have occasion to use the content from the course, but as you develop, you can gain insights from problems you encounter.