The video tutorial provides important tips on using the toString method in Hibernate. It emphasizes being cautious about what is included in the toString method to avoid performance issues. The tutorial explains how logging course details can inadvertently retrieve review details due to the toString method. It also covers the findByID method and demonstrates running a JUnit test to show how course and review details are logged. The key takeaway is to be mindful of what is included in the toString method to prevent unnecessary data retrieval and potential performance problems.

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