The store locator works but there are bugs. For example, the edit and delete buttons do not work unless you go into the PHP code and fix the IDs. I started a support request about it but the request was ignored.

There are several other issues like:
- field validation doesn't work.
- delete button doesn't have a "are you sure" notification and it's right next to the edit button.
- this add-on is dependent on an external zip code API that can be deactivated at any time breaking the add-on.
- The interface has not been updated and looks like crap.
- Code licensing issues so not recommended for commercial use.

I use this add-on sometimes but the developer needs to put some effort into it.