statsd usage

Hi. There are bunch of functions like osmo_counter_* and osmo_stats_reporter_* in libosmocore and other projects. I'm pretty much understand what they do, but what happens on the receiving end? There's nothing in our wiki regarding statsd. How do you guys use it? Any statsd config examples? Workflow hints? With such an elaborate functionality there got to be somebody who actually uses it. Please share your experience, configs, pretty screenshots and complaints :) cheers, Max.