I love my cava tzu. He is the best thing to ever happen to me. He is completely obedient with his owners and will do anything to please them. He does have a little bit of the stubborness of a shih tzu, such as when he wants to go out, he must go to a certain place all the time. I would recommend a cava tzu to anyone. Cava tzus may have an underbite due to shih tzus have one. My cava tzu has the hair of a shih tzu and many people believe he is a shih tzu although we try to leave his ears, and tail long.