I like most that it enables me to see my website's analytics without any plugins or other software installed in browsers, this helps us know more about our visitors' behavior so we can improve their experience through better design & content for them as well! That is not much but it would be great if they could have some integrations with Google Analytics APIs (or similar).
And also having an API endpoint where you send stats from multiple sources such as Twitter/Facebook etc., instead only using GA once per month which makes sense because otherwise there will always be "holes" when looking into previous months statistics. A lot of people are unaware how important SEO factors actually contribute into making good ranking results especially nowdays due its importance among all things online nowadays including social media marketing - hence why i'm sharing here :).