First you need to choose which bus company to go with. We opted for Big Bus as it offered a more comprehensive route around Chicago. In trying to plan ahead, we came across the website describing different combinations and chose the classic tour with no add-ons. The ticket promised free popcorn which did not materialise despite boarding on one of the specified stops. We used the tour to orientate ourselves to the city, and also as a means of transport to get to the various tourist attractions. As a result, we experienced a variety of guides and drivers, some better than others.