I took the three-hour tour which also included lunch, and was very satisfied with the luxurious time.
The train only went as fast as a bicycle, so many cars passed us, but they waved and pointed their cameras at us, so I realized that this was one of the highlights. The wine and lunch were also different from a normal restaurant, as the view from the train window changed, so I enjoyed more than just the taste.
Considering the price, I would hesitate to do it again, but I can definitely say that it's a tour worth taking and I would definitely recommend it to others.