From what I know of them they are fabulous to windward but not so hot off the wind unless you fly a bloody great big schute. Supposedly, as has been mentioned, they are a wet boat but from I've been told by owners of other S&S designs of the time that was typical of S&Ss of the era.
Down below they are usually a nice fitout but tight in the v-berth (often this is only pipe cots) and to my mind they have a pokey galley.
Good looking things though.
“Give a man a fire and he's warm for a day, but set fire to him and he's warm for the rest of his life.” Terry Pratchett