While TOS-R is a mixed bag for me, I prefer the TOS-R version of Doomsday over the original. This is just a case where the new FX were perfect.
QFT - there are episodes where overall, I thought the remastered FX team blew it (The Ultimate Computer
for one); but with The Doomsday Machine
they hit one oiut of the park. <-- I honestly think they themselves liked the episode so much, they put some unpaid OT into it.