A-. Thoroughly heartfelt, expressive, and nuanced work by Connor Trinneer and the actress for the Cogenitor that blossomed into a warm chemistry and friendship and two distinctly human (to use a partial misnomer) character portraits; her "they won't let me climb mountains" was heartbreaking. And they produced a meaty moral dilemma that progressed and become more complex as the ep went along, with an ending that, while indeed somewhat favoring Archer, did to an extent present both sides and let the viewer make up his or her mind - and didn't leave matters neat, tidy, and consequenceless. The rare jewel that deeply engages both the audience's brain *and* heart.
(And I liked how the Vissians, while indeed forehead aliens, were given a definitive and separate culture - their aptitude for learning and yearning for knowledge, how they placed greater importance on different senses than humans do, their mating practices, etc. Pacing and direction were also excellent - the ep seemed very "full" and textured.)
And the contractual weigh-in on the story's moral dilemma - I despised Archer at the end. He's one to talk for chewing out Trip so for making decisions with his heart, as, while his deliberations were occasionally even-sided, his final decision seemed to be greatly affected by his personal affection for the Vissians. (The petty and vindictive way in which he broke the news to Trip about the Cogenitor's suicide - snidely rubbing it in instead of informing him of the consequences of his supposed actions - seems only to support that view that Archer made this too much a personal issue.) Even if Trip was wrong in initiating contact with the Cogenitor, I cannot take how inconceivable Archer found any right of self-determination in regards to the Cogenitor (he seemed ultimately far more concerned with the loss of the prospective chance for a new life, the failure for the Vissian couple to conceive, than the existing one), and both he and the Vissians, though willing, seem somewhat unprepared to deal with contact with another species - neither can seem to deal with the implications of a deep conflict of values in a friendship, for one thing, and the idea that they can pick and choose how contact with a foreign culture is going to affect them is not workable. (Again, even if Trip was wrong, ycultural contamination and transmission of "undesirable" ideas like this are inevitable in protacted exchanges such as this one.)