The VFX upgrades are so faithful, I have no need to go back and get the DVDs for the unaltered episodes, like I did for TOS.
Faithful these are, but I'm really starting to wonder if this is a good thing (like the CGI recreation of the 4-footer
In this screencap
from "The Enemy" the Romulan Warbird "correctly" passes the Enterprise
on the starboard side, but conveys the incorrect impression that both ships have roughly the same size.
But the Romulan Warbird is a much, much bigger ship
and the reconstruction of the aforementioned shot provided an opportunity to make the Romulan Warbird pass the Enterprise's
bottom and thus convey its correct dimensions.