Jordi came to us as a foster dog. We have had GSDs for over 50 years, so were aware of their foibles. After 6 months, he accepted we were suitable for his needs, and he started to bark at unknown arrivals. He does follow me like a shadow as he has cataracts, but if a roe deer appears, he's off.
He recently had his right front little toe amputated due to a cyst, but is improving daily.
He's a lovely dog, I wish I had him from a puppy, but he's loving life