Dr Sullivan and his staff were great!! I have a fear of going to any dentist since I had a bad experience as a child at a dental office. My anxiety level goes through the roof!! I let his assistant know my fears and she reassured me that they would make it as relaxing and comfortable as possible, AND THEY DID!! And the best thing of all, I had a Root Canal and felt NO PAIN at all, NONE. I will definitely refer Dr Sullivan to ALL of my friends that need a Root Canal!! Also, the mouth cover that he uses to isolate the tooth and stop debris from going down into your mouth worked GREAT!! No gagging or worrying about swallowing!! Thanks Dr Sullivan and Staff!!!