Cardinal by Miro is highly praised for its ability to streamline product management by integrating customer feedback, CRM data, and task management issues. Users appreciate its sleek design and AI-driven insights, which help prioritize features based on real feedback and revenue potential. The platform is particularly beneficial for larger teams, providing a unified source of truth and enhancing data-driven decision-making. Users commend the support team for their responsiveness and the tool's impact on improving product strategy and planning efficiency. Overall, Cardinal is seen as a valuable asset for product managers.