The standards are VERY high to make it thru the program so many dogs don't pass for many different reasons.
I did have my Elsa Rose from the Seeing Eye and they are GREAT dogs! They have a closed breeding program with their own breeders and a geneticist on staff. So while they DO go to responsible breeders when they have to add a new dog(s) to their program to add some fresh blood occasionally. Generally they use their own dogs so don't bother with the expense and paperwork to register with another organization like the AKC. They absolutely keep track of each and every dog with more health checks/x-rays than most regular breeders could ever afford though
. So they'd have a pedigree for each and every dog though don't bother handing it out cause it would be meaningless to anyone except those in the Seeing Eye except for the dogs they take into the program from the outside.
They do NOT breed for anything but health and temperment so the dogs tend to be nice and straight backed, black and tan, and a bit on the smaller side of the standard so it's easier for the person they are guiding to fit dog/hander around in the world. I know right after I got my Elsa Rose they added a few GSD's from Europe that were from the German Showlines and actually (I believe) either Seiger winners or Champs or along those lines.
I always recommend these dogs for people looking for an older GSD. They are 100% honest with everything about the dog, know everything about it since birth, they've been socialized in families and if there is an issue will always take the dog back. So it's like a rescue but chances are you know WAY more about the dog, good and bad.
I got Elsa KNOWING she had mega-esophagus because they are so on top of the health of all their dogs (and clearly are working on getting health issues like this out of the lines). But I had their support even AFTER I took her so was confident about taking her and was blessed that I did