Not a broker replacement. A missing review layer.
IBKR native tools are strong for trading, reconciliation, tax records and official reporting. IB Dashboard focuses on the layer many investors still build manually: turning years of trades, options, dividends, fees, FX and multi-account data into a dashboard they can review and query every day.
The feature set is especially useful for Wheel strategy users, multi-currency investors, DCA investors, household multi-account users and anyone who is tired of maintaining spreadsheet glue.