The technician, Amber, was very pleasant and caring. She thoroughly explained the procedure and followup diet requirements. (She said to follow the "white diet" for 24 hours but I decided to do it for 48 hours which is what other teeth whiteners recommend.) The treatment room and chair were relaxing and comfortable, including soft music. Amber was always present during the procedure. She often checked on my status and applied more vaseline to my lips as necessary. I experienced no pain at all. The treatment was effective, my teeth are a lot whiter. Very happy and will return.