The main benefit of using agile methodologies in product development is enhancing flexibility and adaptability throughout the project life cycle. Agile focuses on iterative processes that allow teams to incorporate feedback and make adjustments quickly, addressing any challenges that arise in real-time. This leads to improved product quality, as stakeholders can review and refine increments effectively. Agile promotes collaboration within teams and across departments, increasing alignment with customer needs and market demands. Ultimately, this approach reduces time-to-market and helps teams respond to changing priorities, driving innovation and customer satisfaction.