At Amtrak we used BO. One of things we struggled with was Excelsius. It has a limitation- it expects you to aggregate your data before you can use it. Otherwise you'll have performance issues because it's not made to handle large volumes of data. To work around it we would have the aggregated Excelsius and drill downs would link back to a webi report to provide more detailed information. We were able to a provide a dashboard for our 9 board of directors, provided that we aggregated to a level that we weren't exceeding the limitations of Excelsius.