I must say that all of my cruises on Royal have been excellent. I have not been on the Explorer but I'm sure that those who have will want to go back just like our Cruisequeen is doing.
Carnival Liberty New Year's Eve 2007
Liberty of the Seas 5/2008+11/2009
Allure 1/16/ 2011
Independence of the Seas 12/29/2013 Top-notch!