One of problems when customer checkout is address. By default of Magento 2, customer need to remember a correct address to input address fields. That can make mistakes and take time of store owner to verify customer data.
Address Suggestion is a smart feature of Google Map, and we integrate it into Magento 2. With a simple task, machine is hard to wrong.
You need add a product before you test this extension on checkout page.
Feel free to get support via email: firstname.lastname@example.org