The Trade Desk, a demand-side platform, successfully modernized its monitoring system by migrating from a labor-intensive, homegrown solution to Grafana Cloud, a fully managed SaaS metrics platform. Initially facing challenges with scalability and reliability, the company sought to improve its monitoring infrastructure, leading to a partnership with Grafana Labs. This collaboration enabled The Trade Desk to leverage Grafana's data visualization capabilities and Prometheus for metrics and alerting, significantly enhancing query times, reliability, and operational efficiency. The migration not only reduced costs and troubleshooting efforts but also rejuvenated the engineering team's focus, allowing them to concentrate on innovative projects rather than maintaining outdated systems. The transition was met with positive feedback from engineers, marking a successful enhancement in performance and team satisfaction.