we had a front cabin last July on the Freedom with a window. it listed as an interior room but has a window and if you walk outside your cabin to the left or right you have a semi~private balcony (i say semi because although it is accessible to the public a lot of people don't know how to get there). the view was cool and the room very comfortable.
we had no problems.
i prefer a regular window but for the price we got on this we did not turn it down~and were not disappointed. i'd book this type of cabin again.
*Carnival: Victory 5/13~5/20/2012; Glory 3/13~3/20/11, Freedom 7/26~8/2 09; Destiny 10/30~11/3 '08, 3/2~3/9 '08; Victory 4/15~4/22 '07; Valor 3/5~3/12 '06; Holiday 7/31-8/4 '04; Imagination 6/24~6/29 '02 *Celebrity Equinox 5/14~5/24 '10 *RCI Brilliance OT Seas 6/10~6/22 '08 *Regal Empress 6/16~6/18 '05