I ended up with a Marriott on a Priceline bid (Berlin). Incidentally, I am already in the midst of a Platinum challenge, but was wondering if anyone can give some insight as to what (if any) benefits I might see at check in? Will the nights count towards meeting my challenge? (I'm guessing not). I know different chains treat Priceline reservations differently, so I have no idea what to expect - please don't flame too hard!