I don't think there's a single person who doesn't appreciate the effort and maybe used at at least once, but the thing of it is that at the point of time in which it was done, the timeline was simple enough that any answers that needed to be answered could be done so with a quick check up of the timeline. There were problems with continuity and the timeline addressed them and it was OK because things were still simple enough that it all made sense. But Ultimatum ruined it - not to mention it, Ultimate Power, and Ultiamtes 3 zapped any enthusiasm anyone had for the line.
But the work itself was epic, and got us published in USM so that's always good.