City House are hard to beat.
The service that we had was excellent. Our server was knowledgeable and attentive without being overbearing. The manager even stopped by to see how we were doing, which is a nice touch. I especially appreciated how they removed all plates and silverware at the end of each course and brought fresh ones. I don't understand why more restaurants don't implement this simple practice to up the class factor. Also, the ladies room was really REALLY pretty. Bonus.
I think Alleia is a nice choice for Chattanooga dining. The ambiance is romantic, the food is prepared well and the service is high-end. If you are looking for a fancy take on Italian in Chatt-town, Alleia is your place.