I kinda want to ding it because it fell back on time-travel/alternate-timeline shenanigans, but it was done really well. So no harm, no foul. Pretty good episode.
At some point early in the episode (before Spock's speech, which clinched it), I recognized that it was basically the TOS episode "Balance of Terror" in an alternate timeline, and from there it became a fun game of seeing what's the same, and what's different, and why. That kept things interesting. And then the ending, which nicely tied up a few things, and of course set some things up for the second season.
Also, Captain Batel reminded me a lot of one of my old girlfriends, a whole lot, and it was really distracting.