Absolutely wonderful. Weather no issue - except for not being able to see the Boston skyline during the morning arrival, empty planes, upgrades cleared, US wasn't too bad
Had an amazing time switching airports in DC . . . had some spare hours, and walked around some of my favorite spots, including Dupont Circle to make a trip to my favorite empanada place.
My only complaint of the trip: IAD security . . . slow, and incompetent, as usual.
Just great fun . . . I hope this run surfaces again. I'll take it in a second. ^