I've got one. I went on the Sovereign once by myself and found a good rate for a cabin on the Promenade deck. These cabins only extend from the centrum forward and have a window overlooking the promenade. People walking can look in at you. Well I took an inside #7001 all the way forward. It appeard from the deck plans there were only a handful of these and it looked like there was an exit onto the promende forward. There was not and due to the shape of the forward superstructure, the wall sloped at 45 degrees over the beds. It was not a problem for me but some may have been disappointed as it seemed even smaller than the typical inside cabin. I still managed to get lucky in there though. These cabins don't appear to be part of the original deck plan. See attached deck plan.