I liked the episode itself. It was interesting to see Zeb and Kallus starting to respect and somewhat understand each other. I also liked the contrast between the two of them returning to their respective crews in the end - Zeb being greeted warmly by the Ghost Crew while nobody seemed to have missed Kallus.

However, the whole development that was brought up in this episode went nowhere - well, it's the turning point for Kallus to become a double agent but the creators didn't do anything anymore regarding Zeb and Kallus' relationship. They interact like two or three times briefly with each other over the remaining seasons. It doesn't really make sense to me why Zeb would bring Kallus along to Lira San based only on one longer encounter shown on screen. The arc was a good idea but they didn't really develop it after this one episode

I don't remember Rebels much, but I think I liked the story arc. Maybe I'll rewatch it, I probably won't

I like it. I thought it was an interesting story. We know that Kallus was involved in the role of the death of the Lasats and we got to see the relationship between both characters. I think it worked out well. Plus this was the turning point where Kallus started to become a hero and to leave the Empire

Though I'm not a fan of Rebels overall, I did actually like the first episode with them. I like stories where two hated enemies are forced to work together.

Good idea, problematic execution. Wasn't so much an arc as a one-episode turning point and coda provided by the finale epilogue.