Good but busy!
We went on a Saturday and the hotel was swimming with people. THe hotel levels were a bit confusing, including the east/west tower, but once we got the hang of it, things went smoothly. Room was great - we upgraded to city view and it was spectacular. Great location on Wacker. Elevators were frequently packed, had to wait for 2-3 elevators to squeeze in on multiple occasions. Overall, a very nice hotel with many dining options.