I have used Priceline a number of times for my hotel needs. Every time that Priceline has booked me into a hotel, it has always booked a "smoking" room.
I do not smoke, I have never smoked and fine it obnoxious.
This usually doesn't cause a problem, but on my reason stay I also booked a room for my daughter and, true to form, we both were booked into "smoking" rooms. They were totally booked so we had to wait for hours to get her a nonsmoking room There needs to be an option to select which type of room you prefer.