F1b Goldendoodle Personality has an excellent personality. The F1b Goldendoodle has a lot of qualities and that makes it a perfect family dog. The behavior of this dog is excellent with kids, family members, other pets, and even with cats. This dog has the qualities of a highly intelligent, playful, non-aggressive, loyal, loving, and sweet dog. The behavior of this dog can also be excellent with strangers if it was socialized properly.