Cats are just fun, as are most things with sails but for some reason the feeling of hanging out on a trapeze, with a hull almost to that point of no return. You are literally 12 feet off the water almost, granted this isn't fast but it feels good.
Also I love it when I am putting the boat in and little kids look at it and are just amazed. It is so different.
It is pretty easy to single hand a 17 foot cat and to move it around on the land but I owuld hate to try to move a 17 foot mono on the land alone.