Apparently this episode is not among fan favorites, but it fits in quite well with the extremely strong stretch that began in "Blood Oath" and ran through the end of the season.
We're so used to clean-as-snow Kira that we share her antipathy for collaborators - of course, they deserve our contempt. But then we're paraded a series of collaborators, first Kubus, then Bareil (apparently), that make us question that antipathy. Occupation and war give us all tough choices. And Kira finds out that even our heroes sometimes have to be in league with the Devil. (A lesson she would apply later in the series.)
We get rich performances from Nana Visitor and Philip Anglim, but the star of the show is Louise Fletcher. Even this early in the show's history, she proved to be an extremely inspired casting.
Oh... and poor Odo, four more seasons of heartbreak for him.