The tour was in a very comfortable minibus and our group was around 12 people. It was in both English and Mandarin. There wasn't lots of information given on the tour but it was a good way to get to see the different sites. All activities are optional, however bear in mind that if you choose not to do an activity you must wait on the rest of the group and are not able to go onto the next thing, I chose not to go to the observatoire and ended up just walking round the area nearby, we couldn't go ahead to visit the city. All the stops are quite short but there is sufficient time to see the falls (50 minutes), the canyon (1 hour) and the observatory (30 minutes), I could have used more time in the city, we had 2 hours, but I understand that isn't practical with the itinerary. There was a change to the itinerary for our first stop, we went to the falls before the canyon, I didn't hear why, but it still worked. It isn't so much a guided tour, but a way to get to all the places. Overall, a good way to see the places around Quebec and get a glimpse of the city.
Had a wonderful time. Max was our guide. He was very informative and kept the tour on schedule so we could maximize our time. So much to see in a day trip and the time went by very fast. Would recommend.