A good breeder will be well connected with the dog world and will probably have awards for breeding quality dogs, though a new breeder may not have these yet. (doggytoggery.com)
I have been breeding quality puppies for over forty years. (BreedersClub.net)
These breeders are involved in breeding dogs to make a profit, not in breeding quality animals to improve the breed. (komondorclubofamerica.org)