Easy to use, easy access via internet as well which makes it convenient even when we are not in office or do have limited network connectivity available with us at home etc., very detailed charts/graphs can be generated without any help required by our end user (which reduces time spent generating reports). I would like more features such filters could also add so one does needn't go through each chart manually looking out if there's anything they want filtered before clicking'save' button - maybe some other way around this problem should work better? For me personally its best option because i am able make my own customized analysis using these tools easily rather than going thru manual process everytime!