We had a wonderful stay in New Orleans. Gabrielle's house is very near 2 of the best places to eat in town: Elizabeth's and The Joint, both of which we would highly recommend.
The house was spacious and there was plenty of room for us and our son. He used a very comfy sofa bed.
The Bywater area is quirky and definitely worth exploring, especially if you want to hear live music. If you don't mind walking, it is about 30 minutes to the French Quarter, or use the bikes.