The ability to view data in real time is great! I can see where my traffic comes from which helps me determine what channels are working best at any given point so that we don't waste money by running campaigns to dead audiences or have people click through ads they will never reach because of their location, device type etc.
It's not always easy to find this information but it definitely makes our work easier when trying to target specific users/demographics as opposed to just guessing who your customers might be (or being able to know if someone isn't actually interested). There could also be more reports available depending on how much you spend per month etc - there aren't many options here other than monthly spending caps. We use PPC advertising across most mediums including mobile app installs using Google AdWords and Facebook adverts specifically.