On my first visit I noticed that her office is very small and it was shared among her siblings with other medical degrees in different fields. In her office there were only 2 dental chairs and no equipment whatsoever, that should have warned me about the poor/cheap conditions she is giving all her patients. At first Dr. Kwok seems very kind and trustworthy but over the course of my treatment she was very pushy on telling patients like me to recommend my family/friends to her so she can get more patients. This obviously hinted something, such that she does not have much patient and she isn't gaining any revenue. Over the course of my treatment she started doing a bad job on my teeth, she only sees me for no more than 5 minutes for each visit. She is very frugal with the rubber bands and with the metal wires. She reuses them on my teeth and never changed it for me. Dr.Kwok has a superiority complex in which she thinks she always right and never listens to my input. As of now my treatment hardly progressed and I'm deciding to switch to another orthodontist. She's not trustworthy and I'm very disappointed. There were many signs hinting that she is a bad orthodontist (small office, limited dental equipment, empty waiting rooms, very few patients) I learned my lesson and I hope that others would do some research before choosing your orthodontist.