The cruise lines only post generic information about cabin classes. They do not disclose information about specific cabins. Some cabins or balconies are larger even though the cruise lines do not mention it.

Celebrity lists Solstice cabins 8343 and 8199 as being the same at 194 sqf for the cabin and 54 sqf for the balcony.

Looking at the deck plan and reviews, it is evident that 8343 has a much larger deck than the 54 sqf listed.

http://www.cruizr.com/Cruise-Info/cabin/Solstice/8343

http://www.cruizr.com/Cruise-Info/cabin/Solstice/8199

Since the cruise lines do not post the information, sites like these depend on travelers to post this information just like seatguru does for airline seats. So unless someone specifically says it is larger, all they can go in is the information provided by the cruise line.