I would give hotel 3.5 stars. Yes, the lobby and restaurant are great; however, the rooms and atmosphere need a renovation.
We had the suite- it was spacious. Yet, the restroom was unbelievably small compared omg to the size of the suite. Also, I didn't like lighting in the room- it was not enough. Next, the bed was a little bit too soft that created difficulties to fall sleep.
Still, the hotel is a classy place in the middle of Pittsburgh. The restaurant next to the lobby served a wonderful breakfast! Try their buffet- worth it. The waiter Erin was great!
If you won't stay here, at least com to check the lobby for afternoon tea ;)