I've been using w3w personally for a while now, but for the last few months, having realised it's benefits I've also started using it for business purposes. I own an estate agency and we now include a w3w location for all of the properties we sell/let, making it easier for buyers/tenants to find the property.

I recent example of how effective this has been is with a particulalry difficult to find address we are selling. A viewer asked us for directions as he couldn't find it on conventional sat nav. I gave him the w3w location. When I met him on site I asked of his experience (he had never used it) ... he said he was massively impressed, the w3w took him straight to the door with no hiccoughs.