It allows you to query, visualize, alert on, and explore your metrics no matter where they are stored. Grafana gives you massive query performance and high efficiency for your Prometheus metrics at any scale.
Seamlessly define alerts where it makes sense
Bring your data together to get a better context
Completely open source platform
Allow you to visualize your data any way you want
Create dynamic & reusable dashboards with template
Rich Graph Annotation from various data sources