I love that it is an extension for my Google Analytics account, so when you have been using analytics already for quite some time this tool becomes very intuitive.
It also has great integrations with Salesforce (which i use daily) as well as Hubspot which are both our marketing tools in-house at work! The UI could be better but we haven't found anything yet that makes us dislike it enough to look elsewhere. We can now see where people from different platforms such as social media or email go after they click through one piece of content. This helps me make sure that my blog posts get seen by those who need them most - exactly what the goal was anyways :).