Am traveling to San Francisco from Sept 22 - Sept 27. Was having no luck with bidding for the length of my stay for my maximum bid of $140, I tried the rebidding system using multiple zones for 3 stars and greater. Finally had success with individual night bids. Staying at the Hyatt on the 23 and the Le Meridien on the 24 and 25th. I am now without accommodation for Sep 22 and Sept 26. These dates must be very popular but I'm sure something will turn up:)