I love CiviCRM, but sometimes visualising and 'reporting' on data can be a complicated process and personally I think the Drupal Views module is a perfect way of easily generating listings and reports that can be filtered, sorted and manipulated on the fly by non-technical users.
Currently, Views intergration is pretty good but there's more work to do and I'm taking over the views maintenance of CiviCRM, to not only fix bugs, but also add enhahncements and features.