This hotel is an excellent location for sightseeing, shopping, and restaurants. We stayed for 4 days and never used our car once. We either walked, took the bus, and even used the water taxi once.
The hotel was nice and the staff very helpful (as always with Marriott hotels).
The only one complaint is the noise. Being right downtown off of Michigan Ave is NOISY at night. Constant horn honking and sounds of sirens all night. Had a hard time sleeping.
Other than that, everything else was great.

Less than a block off Michigan Ave., with in walking distance (for most) to Millenium Park and the Navy Pier. Our room was very clean and a decent size, king bed and sofa, on the 23rd floor. All staff we encountered were wonderful!! Would return or maybe try the Marriott Fairfiled Inn & Suites, which is across the street less than half a block away, as they include breakfast.

We took the subway from the airport. You have to switch from the orange line to the red line and the closest stop is about a third to half a mile from the hotel. We enjoy walking and each had a small carry-on so it was worth the savings, $2 each versus $40 for a cab.

1/2 block off Michigan Mag Mile. Clean, modern, quiet, and comfortable. Staff was helpful and friendly. $28 a day to park in adjoining garage (with $7 discount from hotel). $20 extra per day for a room rate that included a terrific bfast buffet for 2 adults and our daughter. This hotel is also within easy walking distance of Navy Pier, Hancock Building, Chicago River, and lots of great places to eat (Gino's East for Pizza!). I would definitely stay here again.

We stayed at the Courtyard for three nights in July and absolutely loved it. The location couldn't be better- it's right next to the Magnificent Mile and within walking distance of the John Hancock Center, Navy Pier, and lots of other great attractions.

The room was very spacious and clean. The staff was very helpful and went out of their way to make our stay enjoyable.

The parking was reasonable compared to other hotels. If you come with a car, I do recommend just leaving your vehicle in the garage and walking or taking public transportation wherever you go. It would be a nightmare to find parking wherever you go, not to mention expensive.