I've travelled on several Evero trains which were running late. In all cases, the scrolling display of arrival times at stations not yet reached always remained at the timetable booked one. As an extreme example, on a North Wales one heavily delayed at Colwich, it showed a Holyhead arrival time several minutes before the actual time as we approached Bangor ( did photograph it but it hardly seems worth loading).
The First Class passenger seems to be short changed in that the first few seats from the vestibule have no overhead storage because of the low roof under the pantograph - and they are generally airline as well, so no storage between seat backs either. Curiously, a difference between the two classes is that in one (can't recollect which is which), the table seats very neatly line up with a window, on the other the blank space between windows exactly lines up with the table. I can't think of why the two types are different. There's also the continuous noise and vibration from the pantograph if the one at the First Class end is being used.
I am still working on the protocol of action when, being in an airline seat behind another and sharing one window, the occupant of the other seat decides tio pull the window blind down thereby blocking my view as well. 222s, for example, have curtains which prevents that problem.