It may not be the best episode or even my favourite, but I adore it as a finale for the show and basically think of it as my favourite finale of any show
I get misty just thinking about the last scene.
"Five card stud, nothing wild... and the sky's the limit."
Something I've become increasingly concerned about with SNW is how giving Spock a series' worth of screen time and development before his time in TOS might put him "ahead" of where he's supposed to be in his pursuit to understand his humanity.
I hope that the goal is to make him more appreciative of his Vulcan heritage over the course of SNW to explain why he's so all-in on it by the time TOS starts.