What really matter's is where the dog has been and how the dog was cared for > ? My first GSD, Maximillian, lll.. I loved him to death for 14 years, BUT at 4 months when I got him he was raised in a pen surrounded with other dogs, and "shovel shy."
He was shy around people he did not know, he'd look at them, as he bolted in a different direction like they had poison in their pockets, not everybody, but few were able to love on him. Barked at other dogs like he was the king of the World.
Nope, been there done that, the key word here is trial basis. I want em' young so they can be wagging their tail at everybody, until the dinner menu arrives, the hackles go up and it's going to be a blood bath... lol