Great hotel great staff!
I attended a conference at the convention center in March, 2012. What a beautiful hotel right in the heart of downtown Philly! When we arrived, we were ushered to the front desk and check in was quick and easy. The lobby is beautiful and everyone was so friendly!
The room was clean, huge, with high ceilings. Somewhat unusual in a standard, modern hotel. The bathroom was larger than normal and housekeepers were very friendly. 
Loved Magionno's but DON'T go to Melting Pot across the street. Terrible, overpriced and not worth it.
Starbucks in the lobby is very popular...go early.
We enjoyed the bar area very much. Joe, the bartender was very friendly and we saw him a couple of nights. He recognized and greeted us as if he knew us. He gave us excellent recommendations on pubs to visit. The concierge also suggested the Van Gogh exhibit which we enjoyed very much.
All in all, great trip and I look forward to returning.