Sometimes user cannot describe his address correctly or misleading address cause shipping delays.
So it's better to let user select his exact location on maps and google maps is great for this job (as it's almost free).
Also some shipping methods requires you to give them the exact location (lat-long). user doesn't have to leave checkout page to select his location or make any extra effort to select his location, all he has to do is just drag the map to his location.
Another feature is that (on One page checkout) the map automatically grabs his entered address and moves to this address then user can move around to get the exact location. User Is Able To Select His Location On Map After Selecting Shipping Method. User Is Able To View The Selected Location in Order History Details Page. User Is Able To Search For Address on the map.
Admin Can View The Order Shipping Location On Map.
You Can Make Use Of the location For Delivery integration. Plugin Is Configurable With Multi Store. Plugin Support Both One Page Checkout and multi Pages. Auto Capture User Shipping Address and showing its location on map. Map Is Integrated with google maps. Fully Localized.
full support for fixing bugs