You and I may be having the same UI experience but coming to different conclusions on the benefits. I can't recall at the moment if Apple Maps has a lag or if it's actually presenting the location dot ahead of its real location, but the timing is beneficial to me for turn-by-turn directions. I regularly find that Google Maps' UI makes me think I have more time to turn to the street where I need to go than reality, meaning I regularly miss my turn and have to double back to get to my location, where Apple Maps feels more in tune with my driving methods.