Not the best choice in Chicago for the price
I stayed at this Marriott for four nights. Plusses: The lobby bar is comfortable and centrally located, has plenty of seating and an attentive staff, and provides an excellent selection of food and drink; it was a great place to watch the Olympics because of the widescreen TVs. There's a Starbucks in the lobby. The hotel is very close to the major Magnificent Mile stores and shopping malls. Minuses: The rooms are a bit rundown and small, there are no minibars in them, the Internet service is outrageously expensive, and you can get a better deal at nicer hotels in the area for the same price. We also had the problem that the hotel key cards deactivated every single day, and getting new ones required a thirty-minute wait (if you waited by your room, which was what hotel staff suggested) or you had to make a trip to the lobby. We also had hotel staff knocking on our door while we were asleep because they thought we had called the front desk, but they apparently got our room number mixed up with someone else's (this happened twice). Sometimes the elevators were very slow. The air conditioning in the room was noisy and didn't work very well (although it was good enough to keep the room reasonably cool--probably in the high 70s--and it was indeed hot during the days we were there).