Classify the given hotel review based on the sentiment it expresses into two classes: negative and positive.

Q: This was a great hotel right in the heart of the Chicago Loop. Within walking distance to the downtown attractions. Parking is expensive ($50 p/nt) so we parked at a free remote location (recreation drive) since we weren't planning on driving once we checked in. The staff was friendly and helpful. The rooms are large and clean.

A: positive
****
Q: The Conrad Chicago hotel had some of the worst service I have ever dealt with. I got the Executive Room with a king size bed. When I got in, the sheets were stained with some type of chocolate or mud. I called down to front desk and it took them an hour to come up and change them for me. They have a pillow menu which I tried to select from but they were out of over half of them. The Ipod dock was not working either. Also, the room service servers were very short with me and delivered my food luke warm. This hotel is the worst in Chicago and I would never recommend going there!

A: negative
****
Q: My family and I have just had a two week holiday in Chicago, and we stayed for a week at the Hilton Towers. We had a fantastic time and enjoyed every minute of our stay at this incredible hotel. The sheer size of the place is breathtaking and the atmosphere is very friendly and hospitable. If you prefer discreet modern boutiquey-type hotels, maybe this wouldn't be your thing. However if you enjoy old style glamour and glitz, you will be bowled over by this hotel. The place literally sparkles thanks to the enormous chandeliers that are everywhere in the lobby. Tons of celebs have stayed here over the decades and the history of the hotel and past guests etc is fascinating. We got a very reasonable rate for our stay and could not fault anything about this very special place!

A:
positive
****