This tool is aimed at mainly administrative folks who want to understand what's going on in their app/company by looking directly at data. Those folks are usually sql oriented, and you can build any ad-hoc query to do pretty deep analysis in sql. That's why being able to visualize things is also key here. Usually you'd do this in an OLAP db but this is a nice "poor mans" way for at least checking out what's going on without switching too much context.