I love how easy it is for my team (we use it as our only source of truth) to get up-to-date information. It's very customizable so we have been able to set it up in ways that are working well for us. The fact that you can't always rely on Google Analytics has made me look at options like this more seriously. We've also used it with others who were looking into using it for client projects. Their feedback was pretty much what I expected - they liked it but didn't know where things stood when it came time to actually getting paid! My goal was to be able to track all aspects of each website/app that I build/maintain and provide detailed reports back showing things like visitor flow, goals achieved, etc. I'm still trying to figure out exactly why it took them so long to release new versions once updates came around since everything seemed fairly quick otherwise.