Royal Caribbean is far too focused on your hip pocket and taking you for every dollar they can get. So save yourself a lot of frustration, and go with someone else.
I took my family on the Radiance of the Seas with Royal Caribbean for a 14 night trip from Sydney around New Zealand and back again. Stopping in about 8 ports and doing day trips in each port. I have previously taken my family on other cruises, such as Carnival Spirit, and while the ships are near identical in size and similar in structure this is where the similarities end. To be fair for those who have never sailed before the Radiance has had a recent refurbishment in mid 2016 and is of a reasonable fitout standard, so for first timers don’t despair, but do hang onto your wallets!
Yet the biggest difference between Royal Caribbean and Carnival is attention to detail, particularly the part where they try and fleece you for every dollar you have. From the minute you step aboard, to the minute you walk off 14 nights later the staff are at you constantly to pay more. This philosophy is ingrained into everything they do, from the ship layouts, to the port destinations, and the day trips.
In a word Tiny! About 50% smaller than the similar room on the Carnival Spirit (which is the same size ship), and a bathroom to rival an aeroplane, shower you cant even get into, an not even a door so water goes everywhere.