Power BI offers great data visualization tools. To take full advantage of those tools, you will want to ensure that the data you are using is in the best format for those tools.
The Jet Analytics OLAP Cubes and Data Warehouse make using Power BI easy and powerful.
For a quick introduction in using Jet Analytics with Power BI, please see this video:
Here are some links to help you get additional information about how to make the most of your Jet Analytics and Power BI tools: