Havoc, my GSd, has a lot of Kirschental lines and Yasko Vom Farbenspiel. He's gorgeous and has a pretty solid temperament. We did a lot of classes and socializing his first year but due to health matters we were not able to continue through his second year. Without constant training, he's more leash reactive than we would like but we've resumed formal sessions and he's improving.
I think that it speaks well for his temperament that at a little over a year, his world was changed completely and he took it in stride. We've had countless visiting nurses and therapists in and out of the house. My husband was in a wheelchair for a time and on I.V nutrition with an open belly wound. We have never had to worry about Havs misbehaving and he's been at my husband's side throughout a difficult time.
He is also great on vacation. The leash reactivity almost vanishes so I think that it's related to territory. Our world got pretty small for a while. During this time we acquired a pit bull puppy and Havoc's attitude toward her is best described as "benevolent." She's a shy, sharp girl but has absolute trust in Havoc. They are a fine pair.