Feature Highlights

Grafana in couple with Grafana-Zabbix plugin allows to create great dashboards. There is some features:

Rich graphing features
Select multiple metrics by using Regex
Create interactive and reusable dashboards with template variables
Show events on graphs with Annotations
Transform and shape your data with metric processing functions (Avg, Median, Min, Max, Multiply, Summarize, Time shift, Alias)
Mix metrics from multiple data sources in the same dashboard or panel
Create alerts in Grafana
Display triggers with Problems panel
Discover and share dashboards in the official library