It was pretty good. I liked being able to use Siri to search for places and then navigate there. There was 1 problem that needs to be addressed. Navigation does not cache all of the maps for my particular trip. Like... if I start my route with a data connection, then part of the way I have no cell service, I get still vocal instruction, but the screen just shows the line of the road and the arrow with blank map tiles around it. Google Nav on Android caches the whole route so there are no hiccups... even in the event of signal loss.