I can't say enough good things about this hotel. After having a very mediocre experience at The Sofitel (another luxury hotel just down the street), I was hoping that my experience at the Waldorf Astoria would prove to be more positive. Indeed it was! This is probably one of the nicest hotels I've ever stayed at. The location is very convenient. The exterior of the building looks more traditional, but the inside of the hotel is ultra modern and chic. All the employees from the valet to the bell hop to the front desk people were all incredibly nice and professional. Room service was outstanding and they had a gorgeous spa on the 4th floor. Lastly, when I checked in they upgraded my room, so I got really lucky and ended up with the largest suite (one grade below the presidential suite)! Next time I ever go to Chicago I will definitely be staying here again!