The article emphasizes the importance of prioritizing user experience in development by integrating observability into the core processes and treating it as a critical aspect rather than a mere technical requirement. It discusses how Service Level Indicators (SLIs), Service Level Objectives (SLOs), and Service Level Agreements (SLAs) are pivotal in aligning development efforts with customer satisfaction, using metrics like error rates and latency to reflect user experience. The article advocates for using OpenTelemetry and Prometheus to standardize metrics and alerts, promoting transparency, traceability, and portability. Coralogix's integration with Kubernetes enables seamless monitoring and visualization of SLIs and SLOs, minimizing operational overhead and enhancing the ability to deliver reliable systems. By maintaining observability through version-controlled, declarative YAML-based rules, development teams can ensure robust and scalable infrastructure aligned with open standards, ultimately fostering a more user-centric approach to software development.