The activity feed shows a reverse chronological stream of event updates reported via room displays around your office. Find it under Analytics > Activity Feed.
It's useful for seeing how a day unfolds, or identifying top-level trends (i.e. high cancellation rates) at a glance. You'll see updates whenever room displays in your location report changes to current meetings.
As new updates come in, the page will let you know automatically so you don't have to keep refreshing.
The activity feed requires Rooms v1.3 or higher to start reporting data.