Dr. Li is skillful. I have always been afraid to see dentist or to go to a teeth scaling, until I met Dr. Li. Compared to the dentists I saw, Dr. Li is a legend! My teeth feels so clean after scaling, no more bad breath, everything fresh and minty! Although the sound of the teeth scaling machine really freaks me out, I was not so afraid because Dr. Li is doing his job well! He is awesome!