@Eilis2 The service fee for hosts is 3%. The service fee for guests can range from 10-20% it seems, but how they calculate which listings get charged what is a mystery to most of us. If they had great customer service and their site was user friendly, then fees like 20% might be justified, but for a company whose customer service can be frustrating and often maddeningly inadequate, and a site that's often hard to find things on and has continual tech glitches, it does seem excessive.