How does a cruise ship stay on top in the face of stiff competition?

It takes more than a new coat of paint and a change of wardrobe. Following my recent trip on a newly upgraded Crystal Serenity, I've been reflecting on why Crystal Cruises has consistently scored so well in polls of cruisers, including an unprecedented 18 years at or near the top of Conde Nast Traveler Magazines Readers Choice award for Best Cruise Line.

Read more here: Five Ways That Crystal Cruises Stays at the Top of the Charts -