I have found that Waze is the most unstable of the three major navigation platforms, which include Apple and Google Maps. It routinely has trouble figuring out where one is starting from which causes the map to freeze while the navigation continues. It also consistently either stops working (loses the route, or begins to submit random, rapidfire directions which are all incorrect). This seems to mostly happen in urban settings. While trying to get our dog to cancer treatment in Boston, your navigator went off the rails, forcing me to pull over in traffic and go to another option to get there on time. Some of your features are unique and helpful, but you really need to work on reliability, which is pretty awful.