Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It was done wrong.

If they had done a few things differently this episode could have been very good, but the way it actually was written was a total sham. The enslavement of humans and Vulcans in "Crossover" should have been established as having come about because their aggressive empire overextended itself and left itself vulnerable. Two of the episodes strongest scenes are where the Intendant relates how Bajor became part of the Alliance and O'Brien's comment that he couldn't help wondering how things would have been if history had been "a little different." But this would have carried much more impact if mirror-Spock had been portrayed as having tried to warn the Terrans that this sort of fate would happen if they didn't reform their empire, as would the subsequent mirror episodes.