Do you have any advice for potential travellers?
Worth spending a day or two in Brive before starting the trip - beautiful little town and the Black Truffle is a great place to stay. There aren't many vineyards along this route, so unless you are going to Bergerac or elsewhere on the wine route, map out some side visits to vineyards in the region. Have lots of picnics, picking up local ingredients from charcuteries and boulangeries. The entry fee to the chateaus is worth it, particularly Chateau de Fenelon and Chateau de Losse. The ancient towns of Domme and La Roque Gageac are must-visit locations. The prehistoric heritage of the area is fascinating, but investigate the supposed attractions carefully online first - some of them are tacky theme parks. The exception is the Lascaux caves - an excellent site.