I just returned from PHL-LGW-PHL. The service over was exceptional--the crew delightful. I chose sleep over dinner at 9:30pm so can't comment on the food but made a minor "off the menu" request for breakfast, which required minimal effort, and had it waiting for me when I woke up.
The return crew was perfectly nice but nothing in comparison. Food was good and I recall a chocolate-like item for dessert. We also had the mid-flight ice cream and, my favorite, the pre-landing pizza and salad.
Both flights were sold out--good for US!