Slow to recognize you have left the suggested route. Google Maps picks up the change by the time I'm at the end of the exit ramp. Waze says I'm still on the freeway even when I've been off for a quarter mile. This wouldn't be a problem except that the routing is often not efficient - there are minutes to be saved by such changes and Waze doesn't suggest them. Also slow to reroute when traffic issues pop up. At this pointI use it only for notification of where police have recently been observed.