Mux, a San Francisco-based startup, significantly revamped its observability strategy by transitioning from an in-house open-source stack to Grafana Cloud, leading to substantial improvements in metrics volume, data retention, and developer productivity. Faced with challenges of scale and fragmented observability due to their API-first video platform's dynamic usage demands, Mux found their previous setup cumbersome and inefficient, often requiring manual interventions and causing slow response times. The switch to Grafana Cloud, facilitated by their prior experience with Grafana OSS, allowed Mux to cut metrics volume by 60%, extend data retention times significantly, and adopt a more proactive approach to incident management without increasing costs. This transition not only freed platform engineers from maintaining the stack but also streamlined product engineers' workflows by providing a unified view of metrics, logs, and traces. The adoption of Grafana Cloud's features, such as Adaptive Metrics and the potential integration of Grafana SLO, empowered Mux to optimize their metrics management further, reduce costs, and enhance the overall efficiency and responsiveness of their engineering teams.