Dr. Liang is an excellent doctor according to my experience.
The consulting talking is very informative. He talked about the pro and con of each method frankly, and did a careful assessment about the procedure, even the possible difficulties, rather than just wave hand and say " I can do it perfectly".
During the process he cares about the felling of patient very much. When the patient felt a little bit uncomfortable, he will be aware and try to help relief.
I have seen some positive result already after about 2 months treatment. I believe we will get satisfactory result ultimately.