We took the Sunday, 90 minute tour (get there early if you want an inside window seat in the a/c). We have been on too many river boat tours, so some of the excitement is no longer there. The tour was adequate in imparting some of the limited history of the city; the tour guide on the mic was more like a stand up comic, Southern style, rather than a purveyor of sights and facts. The boat was well worn and basic. Overall, it was "ok". Be prepared to pay for parking, wait for about an hour for the boat to embark (unless you want to get there at the last minute and have a tough time getting a seat) and also have a walk to the dock.