I only stayed in one inside room on the Dream, but I found the room small, and lacking storage. The closet in the room we stayed in could only hold about 5 hangers, it was tiny. I decided I would only book balcony OV or higher on the new ships, if there were more than 2 people.
The Wonder and Magic, 11B's aft, has to be our favorite room type, love the set up with the bed in the back, and with 3 if you split the beds there is tons of room. I would much rather have an inside on the old ships than an OV.