This is one of the best hotels I have stayed at in the U.S. The room was super and big, the bed was great and the bathroom was huge.
The hotel is close to everything, and easy to get to from the airport (ORD), the metro stop from the airport is only a short distance from the hotel.
The lounge was nice and the staff remember what they were serving the day before and ask if you want the same today as yesterday. Especially Marie from the executive lounge was great and "she has always a big smile on her lips".
Next time I am in Chicago I will certainly stay at this hotel again.