@Rosemary Chisholm with Airbnb stays people can give their reviews on their stays, rather than with a short term let so landlords would feel more obliged to at least offer value. And didn't your son think to look through photos or just blindly book? And yes if there is a double bed and 2 double sofa beds the host realised they could accommodate up to 3 couples so put 6 people. Whoever booked should ask more questions!