whI've had my 90D for about 8 weeks and I have used the nav a few times and it's done a fine job. I'm planning on a trip to NYC soon and I'll be relying on it more than ever. In reading posts in the forum and Tesla's official site, many complain about how accurate it is. Some want Tesla to adopt Waze and others just rely on their phones. Anyone hear about any updates coming from the mother ship ?