This was a marvelous relaxing cruise. The service was impeccable. The crew made us feel welcome at every turn. The land excursions were good, but there was one that just didn't have much content. However, all in all, it was exactly what we were looking for. The starting land pre-tour in Lisbon was wonderful and we tacked on an additional pre-tour in Spain that was also managed by Viking. The hotels selected were excellent and well positioned to get the urban flavor of each city. We enjoyed the land excursions and the dining recommendations and their special offerings. We particularly liked the tapas and wine experience in Madrid. The dinner service and cocktail service on the boat were great with charming, attentive, skilled persons providing those services. It did feel like the river was a little crowded in that almost every port involved docking two and three deep at the pier. But we would recommend the cruise for someone seeking new experiences in generally untrodden places.