I like how easy it is to use! It helps me target my customers with specific campaigns which makes them more likely buy from us than if we weren't doing this type of thing in our business already!! The only con would be having too many options at once when you're trying figure out what works best (and why).
But other then just getting used to using all these features they work well so far. Definitely recommend taking advantage while there's still time available before its taken off by someone who knows better about their platform/solutions or something else comes along & takes over your space as an effective way to market yourself online. Targeting people interested in certain things i'm able to show up where ever those products may go rather than advertising everywhere hoping one will hit home eventually - instead shows interest right away without wasting resources showing ads anywhere but specifically targeted areas / places.