We were in 5191, an aft corner SC. We found the cabin itself to be of adequate size with more than ample storage, but we thought the finishings in our OS on the Mariner of the Seas were much nicer (all granite counter tops, marble floor, glass shower). I would say our SC was roughly half the size of our RCL Owner's Suite, which weighed in at a whopping 630 square feet of interior space and had a full dining table, sectional sofa, and a curtain to partition off the bedroom from the living area. Nevertheless, 5191 had plenty of room for the two of us. The bathroom had a jetted tub and a separate shower, there was a nice "Princess Area" for hair and make-up, and our very comfortable bed was the size of a Caribbean Island with 9 pillows to choose from! Our suite also had tons of electrical outlets, which I thought was nice since I seem to travel with enough equipment to open a Best Buy!
Our balcony was what distinguished this cabin from any other we've had. In addition to the glorious view and the gorgeous sunrises/sunsets, we had space to host a "Scenic Cruising" party for our CC Roll Call, and about 16 people fit comfortably on the balcony. Our balcony had two large chairs with ottomans, a round dining height table with four chairs, and a small occasional table. All the chairs were imitation wicker and had cushions...so much more comfortable than sitting on plastic mesh! My one disappointment was that the chaise lounges I had seen in all the photos were no longer there. We could have requested loungers, but they would have been of the mesh variety without cushions, so we didn't bother.