Using cell tower and wifi location actually made my location much less accurate when I was living in SF. Rideshares would pull up to the wrong side of the street where the cell tower was, and immediately get kicked out and ditch me because it was a high use bus stop. When driving myself I would pop several streets over every time a new office tower came into line of sight. When near the beach, my location would fix to some cafe half a mile away with its wifi power up too high.