Couple of bookings I had on the 12:20PM LHR-SFO are gone and moved to the 2:10PM.
Pretty clever of UA to have the original departure schedule be
10:25AM
12:20PM
2:10PM (new)
and later choose to cut the middle one such that nobody has a schedule change of 2hrs.
Personally not bothered, although I am concerned that the downgauge to a 789 might turn into a non-Polaris 789 on a whim.