I had always heard that Goldens were extremely hyper as puppies, until they matured and calmed down.
Rocket has been a mix. He does get wound up when my three kids are running around screaming and being crazy. But generally speaking, when everyone else is calm, so is he. Once the kids go to bed, he will pretty much lay at our feet chewing a bone while we watch tv or whatever. He is from more of a conformation (show) line, not field lines. My understanding (and correct me if I'm wrong here) is that field goldens, generally speaking, are high-er energy, higher-drive dogs than.
He does get mouthy....again mostly when he's wound up from the kids, or if he hasn't had enough exercise. Exercise is KEY. If Rocket's had a good long walk or a romp at the dog park, he's fantastic the rest of the day.
Now, at 7 months, he gets hyper when we take him somewhere new....like the vet, or the pet store. But he settles down quickly.
He chews up paper if he can find it. And he'll pick up socks and small toy parts. But he just carries them around, doesn't actually eat them. He's never chewed a shoe or furniture, even when left alone with them for hours (accidentally). He's not a nuisance barker.
So overall, I've been very pleasantly surprised at how mellow he is. I think once he hits about 2, he's going to be a total couch potato. Ha!