My wife and I recently spent a weekend in Natchez and chose to stay at the Monmouth Historic Inn. We had the "romance package" which included 2 nights stay, 2 breakfasts, champagne and chocolate covered strawberries in the room, and dinner one night in their 1818 Restaurant. We also chose to upgrade our room to an antebellum room in the main house
Our stay was wonderful. The room was beautiful with antique furnishings, the food was great--especially dinner. They brought the champagne and berries, as I requested, while we were gone on a bike ride so we had a nice treat when we got home.
The inn has multiple additional buildings with other rooms. Most of these buildings have been reconstructed. The size of Monmouth and how they run it makes it feel more like a historic hotel then an intimate B&B but this was not an issue. Breakfast was in the garden room and with individual table service rather than scheduled B&B style service at a big table as we have had in other plantations. Breakfast choices were a southern breakfast (grits) or stuffed French toast. They had fruit and granola as well. Dinner was a stellar 5 course meal with great choices for each course. The 1818 Restaurant was in the main house.
The gardens are beautiful and were nice to explore. Monmouth sits about 1-2 miles from the downtown and river area though is still in town. It is also about 1 mile from the start of the Natchez Trace which provides a great place go for a bike ride or drive. It's very easy to ride your bike to the trace.
Staying at Monmouth was not an inexpensive weekend but we choose to stay in the main house and upgrade the package. It was a great experience and would definitely recommend it to anyone wanting a romantic weekend in a beautiful antebellum mansion!