Convenient and friendly staff
My title said it all, the highlight of the hotel and my experience was the location and the staff.
Location - HRH is in the middle of everything. Walking distance to everywhere. And when we took a taxi, it cost us $10-$15 to most places. The taxi ride from Chicago Midway Airport was about $35. If you don't have a lot of luggage, take the train to save money.
Staff - Best staff was the lady at Concierge, which was very friendly and helpful with information and directions. The next notable staff is from the Bell desk. He checked our luggage, held the door for us, and worked very hard to get us a taxi. In general, all staff were very helpful.
As for our rooms, it was clean in general and had no bed bugs. That was a HUGE concern for us when we were searching for hotels in Chicago (most hotels were reported with bed bugs, but Hard Rock wasn't.) However, the orange pillow and the bedspread looks dirty and bed was very uncomfortable. The air-condition was inconsistent, it apparently stopped in the middle of the night and the room was hot. The condition of the room could have been better and certain things look old in the room. We were staying at room 1707 (17th floor is the Annie Lennox floor), the view was good, we could see the Michigan Ave Bridge.