Nice hotel but Diamond member issues
I read some of these reviews before I stayed there on business but didn't have the same experience. As a Diamond member, I received a letter from manager stating my room was given based on my preferences of quiet and highest floor with USA Today daily. Well my room was on 21st floor-2102 and right outside the door a noisy ice machine-my noise cancellation machine didn't drown out the noise even! (There are 26 floors). I was told hotel was booked and no other rooms available but don't give me a letter then stating my preferences were met-as they were not. (Also note there is a room right in the middle of the elevators-probably a suite). 
For Hilton Honors members (not sure if just for Diamond ones), you get a coupon for a free drink or dessert, daily continental breakfast, free Internet (a bit slow), and access to Executive lounge no matter what floor you get put on. In the Executive lounge, they had refrigerator stocked well all the time and continental breakfast in the am. Also evening snacks. No television or computers in Executive lounge but there are 2 floors.
Parking was $25 a day with in and out privileges but spaces tight! If you park, get ticket and bring to front desk to have it charged to your room. Otherwise the garage only takes cash.
Bed wasn't terribly comfortable-lumpy but pillows decent. Room was very clean. A/C goes to 72 or so when you aren't in the room so it gets hot in my opinion. However it quickly gets cooler and stays that way all night which was great! Shower good with good water pressure. Towels mostly fluffy.
Restaurant staff for breakfast very friendly and attentive. Buffet basic with scrambled eggs, bacon, sausage, potatoes and peppers, oatmeal, good selection of fruit, and other continental choices. Tasty iced tea too.
There is a Mama Angelina restaurant across the street but keep in mind it's cash only-cheap and decent food though albeit a bit too greasy.
My business was at CHOP which took 20 minutes to get to though < 3 miles-it's by convention center. Might try this hotel again but not to get to University/Medical area unless going by taxi.