We travelled the full length of the Natchez Trace Parkway from the north end in TN to the south end just outside of Natchez, MS. It was my wife and I in a 24' Leisure Vans Unity 24MB motor home.
You won't set any land speed records on the parkway, as speed limits are considerably less than on Interstate highways - 55mph in many places, less in others. But who wants to? This drive is about viewing the pleasant landscape, and more importantly, connecting with a historic byway of the 19th century, acquiring an understanding of what life and travel were like in the 1820s and 1830s. Physically, the road is in excellent shape, offering a smooth and easy drive. It's not too curvy, but curvy enough to completely avoid any monotony. There are frequent roadside stops, many of historical significance. Don't pass them by! This is what the Trace is all about. It's not about wide open scenic vistas like mountain roads.
Be sure to stop at locations that offer good examples of the original road. The effects of the wear and tear of the original travelers is quite interesting. Also be sure to stop anywhere there's an old home, barn or other building. These offer insight to life in the area almost 200 years ago.
We camped at state parks along the way. Each offered budget-priced camping with easy access and bathing facilities that ranged from OK to very good.
For the best trip, make the drive either in the spring when dogwoods and other native blooming plants strut their stuff, or in the fall when the forests show some fall color. We did not, but wished we had, because we believe it would have transformed a "very nice" drive into a "very pretty" drive. The flora and fauna very a good bit from north to south, so blooming occurs at different dates along the length of the Parkway.
There are a number of quaint small towns along the Parkway which offer restaurants, shops and opportunities to stretch one's legs.
This would be a great trip for home (or otherwise) schooled children to study the history of the Trace from native Americans, to settlers, early 19th century commerce, and the eventual impact of the opening of the major North American rivers to upstream navigation thanks to the introduction of the Steamboat.
The U.S. National Park Service has a lot of helpful information available at: http://www.nps.gov/ntr/ .
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.