I'm from NZ which has logical addressing. Trying to find some random business on some random shed, down some random lane in the middle of nowhere in the UK can be quite the challenge - post codes don't help and "turn left at the white post, go down the lane till you get to a crow that's staring south, then drive up past the.... " directions are terrible. What3Words has been great for finding those places that use it... easier than writing down a GPS co-ordinate.