I took the plunge - I went on a cruise last week.
I learned some things about myself. I'm not really a cruiser person - seasick. I'm not a lobster person - must be an acquired taste, I didn't think it was all that big deal.
I think Vroom-Vroom enjoyed it more than I did. She got to ride on the lifts for the handicap vans. (I drove there and they had shuttles from the parking to the ship.)
She zipped right up the main gangplank without any trouble. I did have to give her a little help up the short one leaving the ship as it was at a 45 degree angle.
She got to be in her first conga line.
She went dancing and into the casino - but I wouldn't let her gamble as she's not old enough yet.
She roamed around a foreign country, but we both agree that unless you really like jewelry, Nassau town has too bumpy sidewalks to make it worthwhile.
But the most fun was going out late a night after everyone was asleep and doing doughnuts out in the ocean breeze on all three of the sunning decks. Glorious!
As for getting her into the stateroom, I got one of the regular rooms, but as Vroom is a junior size, she rolled right in without any problems.
A word of warning for anyone going on the Carnival Fantasy: watch out for the speed bumps. There's places were they can shut off sections of the hallways, and at each one is a metal strip to secure the bottom of the door. Most aren't that bad but I hit one (literally) that needed some extra gunning of the throttle to get over it. Also some of the bottom edges of the doors going out to the decks have a lip to help keep water out. Take a running start.
The crew is quite trainable. They soon learned to move their toes out of my way and to not even try to separate me from Vroom. Yes, I rode her all the way to the table, I saw way to much envy and didn't want to chance losing her.
One more adventure I couldn't have done without the TS - those ships are huge!