i flew the US airways flight today from Israel to PHL.
We originally has 2 business class seats flying through Europe and were rebooked on US.
There was only one seat left in Envoy, so we took that and a coach seat.
When the flight departed, there was an extra seat in Envoy, but they would not let my wife sit there even though we paid for BIZ class originally. They said it was a revenue seat and she could not sit there because we paid with miles.
The seat- very comfortable, lies completely flat (much more comfortable than the LH airbus biz clas seats).
The crew- WOW! Have never had nastier service. I was wearing a baseball cap, but perhaps my sefira beard and the kosher meal gave it away). I was in Envoy and my wife was in coach with my son. The head flight attendant would not let my pregnant wife sit in business instead of me. When i tried to go back and help her, she got mad at me and told me i can only go back once. i ignored her and went back to help her every so often.
The food was airline food. Nothing special (better than the kosher lepesach meal i had the day after pesach in biz class on LH)
If i had a choice, i would take anything else other than US. I really despised the service and the way we were treated. There was one nice flight attendant out of the crew...