I've got two pair of superdwarfs; one LTC pair from Bob Clark, and one CBB pair from Dan Uremovic in Canada. I'm not an expert or anything, but I'll tell you a little of what I've experienced. First of all, they are quite active snakes, and although it may be tempting to keep them in a plastic tub, I wouldn't recommend it. They will actually climb quite a bit if you let them. Also, if you're looking for something that is a fantastically tame "pet," a WC superdwarf may not be for you (though one of the other CB dwarf retics may be). The reason I say that is although I don't get bitten too often by my adults, they do not like to be held and will thrash about and poop all over in an attempt to escape. I've also had a problem with the male shoving his nose into corners resulting in an infection that just won't quit, and from what I've heard, similar nose injuries among WC superdwarfs are pretty common.
If, on the other hand, you're ready for the difficulties involved (and looking for a snake that will change your life/dominate your will, etc.), superdwarfs are great. My CB juveniles have been relatively problem free and are rather tame, but CB superdwarf retics pretty rare. Good luck.
Robert