Dr. Lum is easygoing. The atmosphere is non-rushed and pleasant. The office is clean and orderly. Receptionists are on top of things. What I like best is that he does not recommend extra things for me to do to my teeth. My last dentist did and I never knew if it was totally necessary or only to make some extra money. Dr. Lum does the basics which makes it simple to go and maintain. I only wish he could also do things like root canals in the same office.