The best feature of BI tools are their ability to provide data visualization in form of charts, graphs or tables so as to give an idea about current state of affairs. They can be used for dashboards which includes key performance indicators (KPIs) along with other factors like financials. I do not have any negative points regarding this tool but if you want some information then it will definitely help you out. We use these software's mostly by providing our clients with graphical representation of various aspects such as sales revenues and expenses over time range.