Go to betterbidding.com and type in the city on top. People post their experience for each city listing the zone, hotel, dates, and price. I have used priceline numerous times by doing research on betterbidding and have only been satisfied. If you put in some time you will know exactly how to get the hotel you want and what price you should be bidding. They list certain tricks as well like adding a zone for a 4star hotel when none exists.