We got a great deal through Priceline on this hotel. We were a bit concerned at first because of the location on the "South-side". Those fears are unwarranted as you probably won't be walking anywhere from this hotel. The location is a bit distant from downtown, causing you to rely on public transportation a lot.
However the hotel offers a free shuttle that takes you downtown. You are on your own getting back, but just grab the #3 bus and it drops you off right in front of the hotel. The shuttle driver was awesome! She even took us to the closest blue line station (to get to the airport) after we checked out, so we wouldn't have to pay for a taxi or fool with dragging our luggage on a bus. [I hope I don't get her in trouble for that, as that's not one of the shuttle stops. But there were only a couple people on the shuttle and it was on the way to downtown.] That's indicative of the overall service we received while at the Hyatt. Thank you Hyatt.
The hotel has all the amenities you would need..room service, onsite restaraunts, pool, fitness center, concierge, etc. Very nice decor, comfortable and clean.
My only complaint is the location, but if you plan accordingly it's not a big deal. It was our first trip to Chicago, so we weren't there to sit in a hotel. We got up and got going and didn't come back until the evening. We made sure to grab dinner before returning to the hotel, as there isn't much nearby, but we also ordered in from downtown restaraunts (Giordano's and a chinese place) and had it delivered with no problem. Hotel food is a bit expensive, but what hotel isn't? There's a McDonalds within walking distance down a few blocks and there's even one in the McCormick Place convention center if you need a meal in a pinch.
We even got adventurous and walked back to the hotel one afternoon/evening from the Grant Park/Museum Campus area. It was only a couple miles, but stopping to grab dinner on the way and admiring the scenery made it enjoyable. We (myself, wife and 2 boys (8 & 5) safe the whole way to the hotel (we took Michigan Ave to Ceremak).