I have had a few root canals and out of all of them, Aaronson has been technically the best at them. He does an excellent job and he obviously knows his craft. I haven't experienced any major pain besides the needle for numbing. My only critique is that Aaronson's chair side manner is not the best. He is very matter of fact and not too warm and/or reassuring, but you can be confident in his work. I also noticed that he charged a little less than another endodontist that i went too. The receptionist is not very nice either. If super friendliness is important to you, Aaronson's office might not be my first choice.