I have stayed in hotels all around the world and today at the Chicago Hyatt Regency I have received the best service I have been given to date. Jason Jones was helpful and efficient in getting me into a room that fit all of my needs. I will definitely stay here again in the future.

Stayed four nights at the Hyatt Regency on Wacker Drive in Chicago. The location is great in that you can walk to most major attractions in this great city. The room was comfortable and clean. I was most impressed with the staff who were very responsive. Food and drinks are pricey, but you are very close to nearby restaurants and bars that offer reasonable fare. Would recommend it highly.

I stayed in this hotel in 2000, and I found the service, amenities, and general appearance had suffered in the interim. A special request reservation that I had made and the hotel had assured me, via email, would be taken care of was denied at check-in time and again later when I complained to the manager on duty. I expect better from a hotel that used to be as good as this one once was.

Spent a couple days here for a conference. It was a nice hotel but very business like. I would not want to stay here for a weekend getaway. Very busy hotel - not a relaxing atmosphere.
service was great! The front desk was being renovated but they had someone right at the front door to guide you.
Within a couple of hours of arriving there was a car fire in one of the parking garages. Chicago fire department takes things very seriously in their city! At one point I counted 10 emergency vehicles in front of the building. It was a bit scary at first when the fire chief came over the speaker and told us to remain in the rooms due to an incident. However, they kept us informed which was much appreciated!
We did not initally get the king bed we requested and had to be moved to a room next to the elevator. It was okay for us since we had to be up early for meetings. I would not suggest a room by the elevators if you want to sleep in.
The front desk was helpful in printing tickets for us for a wrigley field tour. Taxi's were always available at the front door. The subway was a short walk from the hotel and we used that a couple of times also.
My only complaint is that there is not free internet in the rooms. Thanks to a previous TripAdvisor review I did find out that if you like the hotel's facebook page they do give you a password for one free 24 hour period of access. After that I was charged $12/24 hours.