Ours is very young at 12 weeks. I am a former breeder and trainer of the following AKC and or UKC registered: Boxers, Miniature Dachshunds, Dobermans and Chihuahuas. This is the first Valley Bulldog we have owned. Though similar to a Boxer, they seem to have a more laid back personality. She is strikingly intelligent and so far loves every living thing she's come across.I own a 12 year old Chihuahua and 14 year old Pomeranian service dog. Though she is a new breed for us and our very first, we have already made arrangements for another in late summer.I don't plan to breed either of them. This puppy is pure joy. She can be stubborn but is already housebroken and chews only her own toys and toes.Time will tell but I know she will need a lot of firm but loving training to be the best Valley Bulldog she was born to be.