> The ability to have more typical data-flow joins This is available in Excel too - you can import data with PowerQuery, perform joins, configure relationships

> The ability to have more typical data-flow joins This is available in Excel too - you can import data with PowerQuery, perform joins, configure relationships between multiple tables, then output that into a chart, table or pivot table. You can even put slicers on to let users interact with the data. This is entirely automatable too, so if the underlying data changes you can just run the pipeline again.