This document summarizes Phil Calçado's experience with microservices at SoundCloud over three years. It describes how SoundCloud moved to microservices for rapid provisioning and deployment. This created monitoring challenges as services became more distributed. SoundCloud developed its own telemetry tools to address these issues. The document also discusses lessons learned, such as standardizing dashboards and operations, and how initial microservice implementations at SoundCloud were imperfect but improved over time through experience.