I like that you can create custom audiences for your campaigns, which helps to ensure proper reach of people who are most interested in what you have to offer them! The system itself seems easy enough - but it's not always clear how certain things work or fit together (or even if they do).
Sometimes there isn't an obvious way forward when something doesn't seem intuitive at first glance; however this usually becomes apparent once one gets into using their tool more often than just getting up-and-running with new features/users etc., so don’t worry too much about figuring everything out right away as time will help make these aspects clearer / easier over use / familiarity :) We're able target different segments within our user base depending upon where we see growth opportunities emerging from each group & then run targeted adverts accordingly via AdWords adsense.