We wanted to visit Switzerland so we added the four day extension. Had great experiences and a great tour guide on four day extension in Switzerland. Liked sailing on Rhine and Moselle Rivers. Food was good; open air breakfast was wonderful on ship and one of our favorite things about the cruise. Lunches and dinners were above average and very enjoyable. Cabaret show in Paris prior to actual river cruise was very entertaining. Room was excellent and we enjoyed the veranda. Ship was very very clean and well maintained. Staff was always helpful and courteous. Information provided about history and cultural was very informative and interesting. Wife managed to continue tour even after spraining ankle at Louve in Paris on first day of trip. Enjoyed the excursions in small towns but always need more time for shopping in each of the ports visited. We would definitely suggest this tour to out friends. This is a great way to meet interesting people.