Yes, it allows you to apply for multiple stores as you need.
There are 3 ways to help customers find the stores conveniently:
For the radius, you can allow using miles or kilometers within the searching from Magento Admin. Moreover, you can set for each store with link to website, contact information, and an icon to be used on the map instead of the traditional location marker.
Almost No, it is developed comfortably and compatible well with other extensions. If you have any issue, feel free to contact us.