I love the Jewel class ships, although, to be honest, if it's a ship, if it sails, if I have a nice stateroom on it, I love it. Jewel, Jade, Gem and Pearl are all great ships as well as all the new ships too. IMHO, you're the only person who can make your cruise an enjoyable experience.
I've only been cruising for 10 years, while I've had some iffy experiences, I've always ended up having a great time.
Stop worrying and decide to enjoy your cruise, there's so much to love.
Cheers.