I have travelled both the carribean and Medditeranean in recent years and each time on a Royal carribean Voyger Class Ship, The Mariner in 2007 around the Western Carribean and this year the Adventure of the Seas around the Western Medditeranean.
The biggest surprise was the Cost, fair enough the exchange rate from pound to doller was more favourable a couple of years back, but no way did i expect to spend over 1200 dollers on booze alone and still not feel tipsy in any way.
On both cruises the boat was full but in the carribean space was constantly prevelant,and everything felt more relaxed. This time around the Med, space was at a premium and the deck area was constantly full to capacity, (you had to get up very early to get a bed)Even the Soarium area that usually allows only adults and is generally more peacefull allowed kids in probably because their area was manic-knock on effect, the adult only area was also boistrous and noisy.
Cabin is small, from what i can recall the Mariner although the same size ship appeared more spacious both Cabin and balcony.