I have yet to see SSS that looked right in general on CG characters. The only time it helps is when ears or maybe hands are backlit. But generally you don't even see that in movies or real life. Velvety skin has been missing and all the most realistic CG renders I've seen of humans are softly lit. Looks to me the Lux developers are on a better track. Fryrender has SSS and even a variation which still doesn't look real on characters in their gallery, but does look good on leaves and static objects. But as has been proven over in the Octane Render forum, translucency can work just as well for leaves and some objects.

Kevin