The cluster or host view shows all clusters in a table heatmap, which you can expand down to host level.
Clicking on a cluster shows the configuration of that cluster, status, ORACLE_HOME's, version, patch level for each home, databases running from home, and their statuses.
The y-axis is cluster or host name and x-axis is health of important components in the cluster.
Metrics view shows the CPU, Memory, Disk usage, and Critical Events from each host on x-axis.
Clicking on a cell with do into detailed drill-down for the selected host or component.