I was in NYC this weekend showing my visiting brother in law around and we walked around a LOT. I had Apple maps up for walking directions but could not get over how horrendous it was. Firstly there is no directional arrow, just the little circle with the guy inside. So I had no idea which direction I was headed, and that frequently caused me to walk more blocks than I had to in order to orient myself, or to simply use street signs instead of the app. The GPS location was also horrible, routinely putting me on the other side of the street, or even on the next street over, and it would just kind of switch back and forth like that so sometimes I didn't even know what street I was on. I also noticed that when it was darker the app would go into a dark mode, with dark grey background which was nice at night, but when I went somewhere brighter like under streetlamp the entire theme would change to the older off white theme, and this was at night time. Odd, I never knew the theme changed according to the light sensor, I would think it just changed when the sun set. Anyhow I swore off Google for a while as I prefer the way Apple handles my info, but I felt forced to download Google maps. Google was far superior, I got an arrow which pointed the way I was walking and it was pretty accurate. The GPS location wasn't perfect, but at least it kept me on the same street. So I know I was in NYC with lots of buildings, but I've never had an issue with vehicle navigation so am not sure if the buildings were the issue, or if the issue was the way I was holding it, or other user error. FYI most of this was in the midtown area.