We stayed in cabin 11223....
I am NOT a Spa person....I don't do massages, I can barely stand a manicure...but I LOVE that Thalassotherapy pool, Turkish saunas, relaxation rooms.
My only caution is that the interior Spa cabins can have a noise that we joking call "hitting a deer". It literally sounds like the ship is hitting something. Our cruise was a 9 day cruise and this only lasted 18 hours....so while irritating...it did not ruin our cruise.
I do not believe the Spa balcony cabins had an issue with this. Everyone on our floor that I talked to that heard it were in Interior Cabins.
The Spa cabins themselves are decorated in an Asian theme. Your beach towels are tan instead of blue. Your bath robes are more luxurious and you get slippers to wear and bring home. You also get a few travel size samples of the Elemis body and hair products. These are not replaced once you use them.
The thalassotherapy pool reminded me of the hot mineral springs bathes that I did in Hot Springs, Arkansas.
The Turkish Sauna was VERY hot...and then you have a sauna that is more like a normal one.
The relaxation rooms have heated cermanic tile chairs and lounge chairs and then there is a cool down room where they have lemon water and cucumber water along with hot tea.
The actual size of the cabin is the same as any standard cabin.
Also be aware that there is no smoking allowed in the Spa Cabins or on the Spa balconies. If you are getting a balcony and you like the nonsmoking part...I would get one on the STARBOARD side...since the Port side outdoors is the smoking side for the Dream. (oddly enough the complete opposite of all the other Carnival ships)
Hope this info helps....I loved it...even with the gong show....