Nice report. IAD is certainly a pain at times!
I flew QR a couple of years ago JFK-DOH-BKK return. All legs were the 777s. I really loved it too, except for all of the busing at DOH. When does that new terminal finally open? They even had honey for my tea! Try getting that on UA even in international F. Their business class is certainly on par with a lot of F products out there. I'd love to fly them again some time, but from IAD on a paid ticket it is very expensive and going via JFK from Washington is a pain.