The location of your device is not stored or shared with anyone. It is only used to display your location on the map.
The GPS system is unable to accurately determine what floor you are currently on, please ensure you select the correct floor from the dropdown menu on the left. GPS can be inaccurate indoors and the time to update is based on your own device, if it is not updating toggle location on and off again or wait. It should be used for determining your location but may not work accurately for live navigation.