It looks great for us to manage all digital advertising that we do through our agency! They are always responsive when it comes time to create new campaigns or check analytics reports etc., really helpful staff as well, very quick responses in terms of issues I have had (and they were able fix them quickly!).
Have not yet used this software at such an enterprise level but what i like is how easy its interface makes tracking clients' ads/websites - so much easier than Google Analytics / Adobe's suite. Reporting can sometimes be tricky because there isn't enough granularity in reporting categories; however their support team is incredibly knowledgeable about ad tech tools which helps immensely!! Great tool overall! We're using APG specifically now to track PPC spend across various accounts within our brand portfolio.