I don't like Priceline because many of their flights require a change, and I only fly non-stop if possible. Also, you can't ever get a refund, even if you're wronged. We used Priceline to rent a car a couple of years ago. It wasn't until after we drove away from the airport that we realized we only had half a tank of gas. We called the agency's 800 number and they said that we still had to return the car with a full tank, but they would give us a refund. When we got our credit card statement, no refund. It was denied by Priceline because they don't allow refunds.