Control theory can be beneficial for those pursuing experimental physics in graduate school, though its utility may vary based on specific research areas. The class provides valuable skills in linear algebra and problem-solving methods applicable to real-world scenarios. While primarily advantageous for engineers, particularly in fields like robotics, experimental physicists also find it useful for practical applications such as PID controllers and feedback loops. Even in theoretical physics, understanding system stability from control theory can be advantageous. Overall, the relevance of control theory largely depends on the individual's focus within physics.