Spacious rooms and friendly service depsite being a monster of a hotel. Clean and functionable and in a good location

The restaraunts and the gym were very nice but the room was very loud, you could hear everything in the adjacent rooms and the housekeeping staff were extremely loud in the morning out in the hallways, also the bathroom was not very clean...the floor was sticky and the counter top was stained

We live in the burbs but wanted a nice getaway for the weekend as we had dinner and theater plans for the weekend. We ended up at the Hyatt Regency via Hotwire. We got a rate at about 50% off of the rack rate on the Hyatt website. After talking to people this seems to be a hotel that comes up on the discount hotel sites (hotwire, priceline) often as it is HUGE. We were happy we ended up here.
It was convenient to everything. We parked at the Millenium Park garage for $24 for 24 hours. There weren't in and out privileges like the valet parking at the hotel which was about $50, but since everything was close that wasn't needed. We walked down Michigan Ave and considered going to Navy Pier but it was just too darn cold out. Our room was nice and the bed was great. We were at the end of a hallway in the West building so the noise factor was minimal. We had drinks at the Big Bar and DaddyO. Both were typical hotel bars, nice atmosphere but a bit pricey. The staff was friendly and attentive. While I don't think I'd pay the rack price for this hotel, I'd be willing to gamble on the discount sites to get something like this again.

We stayed in this hotel for the Chicago Marathon. It was so busy that at first it felt like we arrived at an airport instead of a lobby. The hotel could use a major update to keep up with the newer, stylish hotels in the city.
Our room (in the west tower) was spacious, comfortable, just a bit too dark. We did'nt experience any problems with noise from the hallway or other rooms.
Location is great. Right in between the magnificent mile and milenium park.