My friend had one... she was loyal to death, sweet, very playful and loving... had a little bit of dog aggression but was manageable. Flew through an obedience class - had a little trouble focusing around the other dogs but extremely smart and trainable. Kind of had a natural heel (protective). She was, however, super "sensitive" - we had to GO BACK to te vets after dropping her off for a spay because she didn't want strange people sticking needles in her and threw a fit, and they were afraid of her. I never felt scared of her, but when she hit her "teenage" stage she even fought her owner once over going into a crate - not badly, but she wasn't the softest dog in the world.