So, get this: I was just able to successfully change an award reservation on .bomb! Had to change routing, airline, and class. Charged me zero fees (despite changing airlines), and only charged the appropriate mileage! Changed from IAH-YYZ-DUB in UA/AC Y to IAH-MIA-FRA-DUB in UA/LH J. I'm shocked, as this was much more than just a simple flight time change. The merger is clearly a failure.