Dr Penniston and the assistant who helped her with my root canal were very understanding of my pain, gave me plenty of opportunity to express any questions or concerns, and completed the procedure very efficiently. I felt very secure in spite of the discomfort that was unavoidable with this procedure. The other office staff, though efficient in the check in and check out routine did not seem to take any personal interest and were matter of fact. This is a big contrast to the office staff at my regular dentist who are very warm and receptive and work at helping clients feel grateful to be in their dental office. The expertise of the dentist and dental assistant I would rate a 5 star and the office staff a 3-4 star.