I was just reading Consumer Reports article about travel deals.....
And in the end, they could not get a better deal than the boutique hotel they wound up with through Priceline (they were testing using Chicago). They couldn't even come CLOSE. I have had good luck with Priceline and only a few minor hiccups like one undergoing renovations. I worry more about what I am going to get when I am in small towns where the choice and star range is tighter. There are websites (listed on Consumer Reports) where you can see what people are getting on Priceline - what price, what hotel, etc. that will help you judge. I've also found I can delete cookies and keep bidding (also using different email addresses I have) more than once in 24 hours. Let me know if you want me to send you the article.