Hi, if it's any help.... I got my first gsd pup when he was 12 weeks. He bonded straight away with me and my husband, was great with family and friends, he was a fantastic dog. Housetraining was no problem, the same as play biting (unlike my new pup). Took him to puppy school and training (with younger pups of different breeds) and although he towered over them, he was the softest of the bunch!!