Been on that kind of trip. Usually they would stop at a shop after lunch. They usually do not force you to buy anything but there is no other place to go. So you would have to sit around for a couple of hours.
Other than that, the touring was very good. I was very impressed with the local guides.Very professional. It is amazing that they spoke perfect Cantonese and quoted old Chinese literature in Cantonese with no effort.
The food and hotel were excellent. We would eat our fill at breakfast since the lunch was usually not as good.
I would go back again.