First of all, I am not out a bunch of money (though I could have been). I am mostly unhappy with the treatment I received from some script-reading "customer service" people.
I suspected there could be something "hidden" that I wouldn't like, so I made a reservation for only one night instead of the entire week. Sure enough, there was an $18 per night charge for parking! No, not valet parking...just self service parking.
Please beware when making "name your price" reservations through priceline. Once they have your credit card info, whatever money you've agreed to spend is gone. There is no process for recovering your money. After speaking with two people who read from the same script, I was advised that the only way to elevate the complaint was to send an email - which I did. The complaint was answered identically as my two previous telephone conversations went - a recitation of company policy.
I've used Travelocity, Orbitz and AAA Travel - each of them was much more accommodating and the rates were just as good. And with each of these, you know what you're getting before you commit to spending your money.
For the record, I called the hotel where the additional fees were added. They were very understanding and were happy to cancel the reservation...but needed someone from Priceline to authorize it. I bet you can guess what the odds were of that happening!
In short, stay away from Priceline - too much risk for too little reward!!!