I I have never experienced more pain, both during cleanings and in procedures, than with any other dentist.
And I felt he wasn't good about catching problems early on. I went for a checkup every six months (once I waited 9 months) but he didn't find one cavity until it was very well advanced and I had to have the tooth pulled. Sometimes when I would have xrays taken, instead of looking at them on the spot and explaining to me what needed to be done, I was told by the xray tech that the dentist would notify me LATER if there were any problems. I have a feeling he never even bothered to look at the xrays, otherwise he would have caught the problem earlier and saved my tooth. I will not be going back to Dr. Ja.
Also, it was very hard to get an appointment for a checkup. You have to remind yourself to book an appointment for a couple of months in advance.
And he usually insists on working on one tooth per appointment. For example, if you need three cavities filled, you will have to come back three times. I wonder if that is because each office visit requires an additional payment in addition to the cost of the procedure.