That is accurate, they are about the size of a female dubia. They are slower breeding and their expense makes it a bit more of a hurdle to establish a colony that can support feeding off. They climb, so you'll need a barrier, such as tanglefoot to prevent escape. Care is the same as dubia.
Cool thanks, they look interesting. I wouldn't mind starting a colony to feed from on the rare occasion. I was thinking of using a watertight bin for green banana roaches, could probably do the same with these.