With the relaxing sound of the ocean and a beautiful sunset in sight, travelling by ferry can certainly be a slower and more enjoyable way to travel than flying. You can avoid the stresses and strains of airports plus it means you have the added flexibility of being able to take your own car if you wish, giving you greater independence on arrival at your destination.
Depending on your route and the number of people traveling, taking the ferry can also be a more environmentally friendly way to travel too.