Terrific staff and location.
I recently stayed in this hotel during my first ever visit to Philadelphia. The staff was super helpful and accommodating regardless on if you were talking to the front desk, the bartender in the restaurant upstairs, or the cleaning staff. 
My room was clean and comfortable so I really have no major complaints. It is worth noting that the upper right corner of my window frame appeared to be damaged in a way that caused the sound of air being pulled from the room. It really sounded like a fan to me and since I use a fan for white noise at home, this was actually a plus in my book. 
It is also worth noting that my room did not have a safe, nor were they able to provide one for the room. They were however kind enough to offer what essentially appeared to be a safe deposit box sized secure storage at the front counter. 
The hotel was very conveniently located across the street from the convention center. The Reading Terminal Market is also nearby and is a terrific place to grab a bite.