This upgrade has pretty much been a debacle mainly because if anything is wrong with an install, SW is stuck in install mode. There never seems to be any backout as part of the centralized install, which to this outsider, just seems lazy. This looks to me like a lack of exception testing. This has always seemed prevalent at SW, but in this particular upgrade, it's blatantly apparent.
From pre-staging files to the actual install, this required upgrade has been a PITA. This could be our last install if I have any say in the matter.