I go for cleaning mostly, and an occasional filling. Good, thorough work. Attention to detail. They are agressive on doing Xrays, and trying to get one's teeth into perfect shape.
My wife has had more substantial treatments (crowns) and is happy with the results.
They are really excellent on billing insurance, and knowing ahead of time what insurance will or will not cover. (For the crowns, they *underestimated* what insurance would cover.)
Definitely recommend Nolan Bellisario and his office.