Bid 42 for 3 star and was rejected. Priceline offered 52 but I turned down and added Princeton West zone and upped bid to $45 and got 3.5 star doubletree. Used the link. Also as FYI - the Holiday Inn on rte 1 near ridge road (independence way) is a 3 star in Princeton East as a friend at work got that one a few weeks ago when attending same training I will be going to.
Got on first bid of $45 +tax/fees compared to $154 listed on website. Booked the night before. Obviously could have started lower and rebid, but $45 is good! Hotwire would have been $73 for a 3 star in general area