Dr. Li is very good. He is from China Mainland, and speaks standard Maderine. I do feel it is important if you can understand dentist's terms. He graduated here. First time, I went there, I scared to death, he checked my oral completely, and did my 2 teeth root treatment while I watched the video, It lasted 2 hours, and I didn't feel that painful. After I went back home, somebody did it before somewhere else warned me I would feel very painful after MA YAO dispear, but after 2 hours MA YAO gone, I did n't feel anything. He also did "pull-out' and filling for me, I had no any problem. Anyway, I 'll stick to him.