costa deliziosa cabins 6228 and 6223

Has anyone been on this ship, and in these cabins. looking for some reviews of them. I have looked on the deck plan and they seem to be surrounded by quite a bit of empty space, as do the equivalent cabins above. it always worries me when I see empty space on a ship deck plan as I wonder what it contains. we have had experience of being close to empty space before on a different ship and it was unbelievably noisy through the night with some kind of crew activity. admittedly this was on one of the very low decks so I cant imagine what can possibly go on in this area. it's 3 decks above the restaurant and at the other end of the ship. we had no choice as to the location of the cabin as there was very little availability, but if it seems that its going to be excessively noisy during the night, might have to consider an upgrade.