Overall Satisfaction with Microsoft BI
Microsoft BI is used by everyone in my organisation as a back-end solution. We use different tools which use SQL Server and SSIS as an ETL platform and SSAS only to store Cubes for further processing with Excel or any other tool supporting SSAS.
There are many other tools out there which are easier to use and provide better visualization side.
Microsoft BI is not recommended if you do not have a specialist already on board because you need one with this tool.