The golden rule on here is variety. Mix supers in with other insects you have, such as crickets or fruit flies. I will use them quite often during the week, sometimes as a snack after a lunch of something else, or sometimes as the full meal. My guys love them, along with roaches, crickets, hornworms, an whatever else I have on hand.
However, I've read somewhere, I think, that the smaller the superworm, the less meat to shell ratio it has. So they end up being more shell than anything else, compared to a larger jucier one. So that's something to keep in mind. But I could be wrong.