Our tour guide James and driver Landon took us to 4 pizza places; Pizano's, Flo and Santos, Coalfire, and Bartoli's. Great pizza at each place, my personal favorite was Coalfire. James knows a lot about Chicago's pizza history and he helped the whole group feel like we were one group, as a solo traveler that was nice!
It was interesting to learn that most pizza places in Chicago don't actually serve Chicago Deep Dish pizzas. If I remember correctly from the tour, only roughly 10% of all pizzerias in Chicago serve deep dish. Out of the 4 places we went to only 2 (Pizano's and Bartoli's) serve deep dish.
That being said if you love pizza in any form you will not be disappointed in this tour. James says it's a different line-up every time so I'll probably do another tour next time I'm in town!