My husband and I choose Sullivan's often for informal business meetings. The atmosphere is cozy but upscale. The servers are helpful but not intrusive. The menu is just big enough to interesting but not so big as to be confusing.
Prices are decent and you get plenty to eat for the money. Haven't made it to dessert yet - because I'm usually too full from the entrée - but the one's I have seen look great.
And the sweet potato casserole as a side dish is to die for!
This is a great place for dinner for adults or parents of older children. Occasionally we've had to wait on a Friday or Saturday night, but never for more than 15 or 20 minutes.