Ran with a driver and guide.
Found this better than the driver & guide in one., as it is easier to ask questions when the bus is moving without distracting the driver.
Our guide was Ken, he was brilliant he knew every thing you needed to know about Chicago.
At every stop he told you the best attractions , the best bars and restaurants.
We took Ken up on a couple of these recommendations - Gibson's & Portillo's both were amazing.
You can get on and off throughout the day and buy a 2-3 day ticket if you want.
Absolutely recommend this tour, do it early in your visit to get the most out of it.