Won Choi and the team at Datadog are using their own product to gather user experience data, a practice called "dogfooding", to improve the platform. They used Datadog's Real User Monitoring (RUM) tool to collect quantitative data on how users interact with certain features of the platform. By analyzing this data, they made informed design decisions and improved the user experience. The team tracked data on three specific projects: updating the monospace font used in the app, simplifying a complex UI component, and adding custom time frames to a date picker component. They found that using their own product helped them gain insights into user behavior and make data-backed design decisions. By sharing their findings with the team and documenting their process, they promoted collaboration and efficiency within the product design team.