... I've discovered I must un-love them with regards driving directions / road transport in Japan. A simple issue. All the driving / bus directions show up as if we were a driving on the 'right side of the road' country, as opposed to the fact that we're a 'left side of the road' country (which is, technically, the right side for us).
It's a little thing really, and as we don't own a car ourselves, unlikely to cause any more drama than watching the bus we need pass by us from across the road.
It does seem to be a fairly significant oversight on the part of the Google mappers. They appear to have had no trouble with Australia, the UK, Singapore etc ...