The advantage is that he is one of the few dentists that accepts most insurance plans, the office is nice, and the staff is great, and Dr. Hamada is a pleasant person. The quality of work however is unacceptable. Now, three years after last time I was treated by him, all his work has fallen out, or have been redone. This was regular fillings and fairly basic work. I was also surprised that while drilling in my tooth, he was eagerly talking to his assistant about what they had done last weekend, laughing out loud, and appearing unfocused on the task at hand.