I live in an apartment with 3 large dogs and one of them is a GSD. I got her when she was 12 weeks old from someone who couldn't handle her. I had some info on where they got her and just recently I went to visit them(they have 2 of her brothers). There is a language barrier, but I had the opportunity to visit them and they were awesome. All I know is that her dad is all black and a champion at something(Couldn't get any more then that) and her mom was black/tan. He immediately said that mine looked just like her mom. Yes they are high energy, they need to be socialized early on, and training is a good outlet. I would get 10 more of her if I could. She is now 15 months and has completed 4 obedience classes, got her CGC, and is presently in agility with the goals of competing in the future.