"What are hotel star ratings based on?" a colleague asked the other day, after staying in a 5-star hotel she wasn't particularly impressed by.
Good question.
As it happens there are a few cheeky accommodation places that just give themselves the number of stars they think they deserve and hope no one will notice.
But the official ratings are done by Qualmark - an organisation set up in 1993 with the aim of giving tourists confidence about industry standards - which is jointly funded by Tourism New Zealand and the Automobile Association.
Today around 2500 tourist businesses have been assessed by Qualmark and are entitled to display the organisation's fern logo. The rating system was revamped only last year and involves a mix of specific criteria - is there a bar, can customers get breakfast on-site, do the rooms include tea and coffee-making facilities? - plus levels of service.