Meh, continuing a slump I see in this part of the season. Helen Noel is irritating as f**k and easily one of the more unprofessional officers on the series. She's hot, but big deal. She keeps openly flirting with Kirk, baiting him relentlessly and he keeps having to snap her back to professionalism. Once she starts crawling through the ducts and stops making an irritant of herself, she's fine. But until then, I find her to be just too grating.
James Gregory is miscast here, far too blue collar an actor to be the brilliant Dr. Adams. He's good when he shows his colors, but until then - swing and a miss.
On the positives: Morgan Woodward is outstanding. The first glimpse of the yet-unnamed mind meld and the one and only use of what seems to be a rejected shot from WNMHGB of the Enterprise as it approaches Tantalus. It's well below the usual standard, but a fascinating angle and shot. Of course, TOS-R viewers lost that uniqueness....
A 4.