Priceline rocks. Hotwire too (same general concept). Yes I have used it. When used in conjunction with biddingfortravel.com, you can save a fortune. Biddingfortravel will help you determine which specific hotel you are likely to get when you bid on Priceline. I've used it, its not a scam, it works. That is actually the concept behind copycraigs.com, who advertises frequently on this site. He will navigate the complex waters of Priceline, for a small fee. Or you can take an hour to read up on how it works (on biddingfortravel) and do it yourself. I have used it to obtain ridiculously low rates in a number of Canadian and US cities. It helps to have more than one credit card, by the way, in case your bid is not accepted (you have to wait 24 hours to re-bid). Enjoy.