He can be very sweet when it’s just his family (myself, my mom, and my younger brother), but he can be aggressive towards strangers that enter our home, despite our best efforts to train him to stop. He is very fun to play with when he’s in the mood but is not overly energetic, and he is definitely more of a lap dog. He doesn’t take to new animals very easily but he is never aggressive towards them, just wary and disgruntled. In his older age he has become slightly more grumbly, but is still generally a very good dog. Wouldn’t trade him for the world.