The ease with which I can set up my extractions, how quickly they are created (I'm extracting from multiple sources in real time), etc - it's all so intuitive! It would be nice if there was more flexibility when working out what fields should go into each output file; but this isn't really something you need too often anyway as everything makes sense once things have been loaded correctly first round :) We're using Extractors for our BI tool called EBIXtoDW/ETWOLEBIServices where we run queries