Your Dashboard is the first thing that you will see upon logging in to Decibel. This will provide you with the average DXS for the property that you are viewing for the date range in question, along with also providing the relevant pillars of the DXS. Hovering over the relevant tooltips will provide you with a summary of the pillars. You are also able to see the average conversion rate and value for the date range of the property in question.
Clicking the Interaction tab will provide you high level metrics for the current property over the date range selected, while this can also be compared to another date range. A tooltip can be seen next to each metric; hovering over this explains the metric in question.