The most useful feature in this application was its free version which I used to create maps with my students before using expensive software like Qgis or Arcmap Pro that would have costed me so much money! It only works when you are connected online, otherwise it will not work at all but if your internet connection goes down then there's nothing we can do aboutit unless someone else helps us by giving out an alternate link where our files could be saved while offline? We had no problems as far as learning how easy the program worked from beginning till end especially because some features were made easier than other programs i've tried earlier such as Google Maps etc..