I handled snakes at some of the reptile shows from them(their booth), if that helps? All the animals were clean and healthy looking in the whole display, as were all the ones pulled from "behind the counter" for folks wanting something not in the displays. I've seen NERD at a few shows now, and never saw a unhealthy animal, a mite, a RI, or any issues.
I haven't bought one, and haven't been to the facility(too far away), just to be clear. I've only seen what they had at the shows.