Great Dogs! But you must understand that you are buying a dog that is bred to have a high prey drive! Never leave your pets unattended and you won't have a problem. Be careful about getting a GSD that hasn't had the proper testing done on their hips though. You really can't afford to buy a dog that hasn't been OFA certified. They are prone to hip dysplasia, so pay the extra money to get a good one. It will save you in vet bills in the long run! They are super intelligent dogs, and I will always have one in my house!