Well off the top of my head it'd be assuming that searches were distributed randomly w.r.t bad data, whereas in all likelihood there may be some (inverse) relat

Well off the top of my head it'd be assuming that searches were distributed randomly w.r.t bad data, whereas in all likelihood there may be some (inverse) relationship between the badness of an area and its search popularity. In general living outside the US I was happy with the gmaps solution generally, apple maps had some glaring errors in my neck of the woods on launch.