For TOS, I would have preferred a simple scan and remastering and keeping the original intent intact. I can't stand some of the CGI they added because it really sticks out like a sore thumb.
I've often wound up feeling this way about the TOS-R version of "Ultimate Computer" because I feel like the new combat scenes just don't really fit as well. I do like the idea of the Enterprise being shown as more maneuverable, in keeping with Chekov's dialogue about the battle, but I agree it does tend to stick out like a sore thumb.