Our schedule worked out so we happened to arrive at the hotel early, around 9:00 am. We hadn't asked for early check-in, so expected the desk staff would hold our bags and tell us to get lost for a while. Instead, we were quickly sent to a beautiful room with an amazing view. From that point on, every moment at the Park Hyatt was just terrific. Service of every kind was impeccable and quick. The desk people were welcoming and friendly; every bellman or room service waiter was knowledgeable and apparently anxious to help; even the doorman went out of his way to enthusiastically recommend restaurants and give us detailed directions. The rooms are sleek and beautiful, and, if a bit on the small side, shrewdly laid out so every square inch counts. The extra long window seat, piled with pillows, makes for lovely spot to sip a glass of wine and watch Chicago go by. Be sure to ask for a room on the lake/water tower side, and make sure it's high enough to clear nearby buildings if you want a view of the lake. The hotel is so well located, you can easily walk to shopping/Millennium Park/Art Institute/restaurants. A wonderful hotel staffed by warmhearted professionals.