For me I found it hard to find a breeder who was willing to let me into the breeding world - and so my choice of breeder was very limited.
Obviously this will be different for pet buyers.
But my main thing was that my breeder (who also became my mentor) was very open and honest and let me come and see her kittens before I had even decided I was having one from her.
She had nothing to hide and was very knowledgable & helpful
