Courteous, knowledgeable office staff, friendly, gentle hygienists, and a skilled, gentle dentist is what keeps me coming back. I highly recommend Siena Dental.
Other pros: they are great with kids, have a reasonable cash-pay program for seniors on Medicare, tend to run on time (little waiting), easy to schedule appointments, and easy to park. Also, the endodontist I see thinks highly of Dr. Mahon's quality work. That's the best recommendation I would think.