I went to Dr. Guthartz for 4 years before I changed dentists. I never felt comfortable at his office. The receptionist was efficient, but not welcoming. His hygienist always hurt me, and Dr. G. never seemed to acknowledge my presence. One filling he did never felt right, and it broke within a month after he put it in. He then charged me full price to repair his poor work.
The person who referred me to Dr. G. really loves him, but I can't recommend him.