Quick Insights is one of the most analytically advanced features in Power BI as it enables sophisticated machine learning algorithms to be executed against datasets or specific subsets of those datasets. The results of these computations automatically generate highly formatted Power BI visuals which can be integrated into reports as though they were created from scratch. Quick Insights is only generally available in the Power BI service for import mode datasets and dashboard tiles reflecting those datasets. However, the essential capabilities of Quick Insights are also now available in preview for Power BI Desktop.
In the following image, Quick Insights has been executed against the AdWorks Enterprise dataset in the Power BI service:
To execute Quick Insights against an entire dataset, see the Get quick insights...