(I guarantee that summary was more exciting than the episode itself...)
For an episode with “terrors” in the title, it’s nowhere near as suspenseful as it should be. The promise of the teaser — the crew of the Brittain all killed violently — is never really followed up on. Aside from the abortive bar brawl, and O’Brien’s rather cruel treatment of Keiko, the only effects we see are the bridge crew all acting hazy. There’s very little sign of the violence that hit the Brittain, which drains the suspense from the episode. There’s not enough of a sense of urgency. The episode has similarities to “The Tholian Web” from the original series, but that episode had much more of a sense of danger, not just from the crew going crazy (seen via Chekov’s breakdown), but from the Tholians.