So, I was out at a bar and someone mentioned I worked for USAirways and here is the story I was told.
This guy was on the Frankfurt flight and told me how the windshield was cracked and they had to turn around and land in Halifax. Anyway, he said that the crew that flew up to Halifax with the new plane was excellent. He could not stop talking about how they made a negative situation very positive. If I had access to catcrew, I would have looked them up and and sent them all a note about how this guy thought they were wonderful. So, whoever was working that flight, this man says to says to you "thank you for being the best crew I have ever had flying overseas. Even though there was no food, you made up for that."
He also said the original crew was great as to keeping them informed and could tell they must have been exhausted by the time they arrived in Halifax. He hopes you made it home without too many more delays. He also said thank you for turning a bad situation into a safe trip in the end. This situation showed off the professionalism of our flight attendants to him.