I love Metabase (
https://www.metabase.com/) and used it successfully with business users, too (small hedge fund). If it's not too much data, getting it out as .csv and using R + data.table + dplyr, etc; = incredible productivity. See [1]
Use Excel, QlikSense and Tableau if Business Users need visualization. Excel pivot tables = OG data reshaping. Resist more complicated solutions : do you really need more than Excel?
QlikSense doesn't get enough love. It's actually better than Tableau at some scenarios. Or PowerBI if you're a Microsoft shop. Last time I checked, Power BI's Q&A [2] was a KILLER FEATURE. "Show me Sales per Region, Quarterly" and then you get to fine tune it. R and Shiny dashboards = last resort; too much bespoke work. 2 months using R + Shiny can be 1 week in Tableau / QlikSense / PowerBI.
1. "Efficient reshaping using data.tables" https://cran.r-project.org/web/packages/data.table/vignettes...
2. https://docs.microsoft.com/en-us/power-bi/natural-language/q...