I booked a roomette a month out for a recent round trip from Pittsburgh to Chicago. I paid no attention to the room assignment because I have never been assigned anything but a second level roomette. When I boarded I had 14 which was on the lower level. At first I was annoyed with myself for not sorting it out much earlier, but in the end I loved it. It was very quiet and near several restrooms. Good job I liked it, because I had 13 coming back! However, I have a couple of questions--is upper level considered more desirable? Was I assinged lower because I was traveling alone? (I am usually with someone)?