I apologize if this has been covered previously, but nothing came up when I searched: I've heard of complaints from people who've used Priceline and been refused at the lobby due to overbooking. In these complaints, Priceline offered a refund of price paid, but the customer ended up booking at a different hotel, often at much higher rates, in order to have a place to sleep. What is Priceline's official policy and what have your experiences been?