How far? To the end of the driveway and back.
If this was the one time shot attempting TOS-R, I agree.
As a purist, the Blu-ray discs gave me the choice to watch the original version instead (except for a technical problem on "The Ultimate Computer" at the first seconds).
But other than the beautiful and enhanced new matte paintings, some obvious fixes (Enterprise
in darkness zone in "The Immunity Syndrome", after M-5 has switched off the lights on some decks in "The Ultimate Computer") the whole TOS-R excercise lacks passion for TOS in my humble opinion. One might say they got it halfway right but I'd feel TOS deserved a more passionate treatment.