Monitoring fails when it generates hundreds of alerts with no business context. Teams get used to the noise and stop reacting in time.
A strong setup combines technical health, functional impact and clear runbooks. We do not just want to know something is wrong; we want to know what it means and what to do next.
Capacity and trend reviews matter as well. Many severe incidents announce themselves weeks earlier as latency spikes, usage growth or intermittent errors.
Useful observability is not impressive because of the number of charts. It is valuable because it speeds up decisions.