I was a little bit disappointed about how the episode turned out.

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The ending was a little too feel good for me. In the start, things are very dark. Beemo seems to be dying and the other robots continue to repeat their same jobs even as everything is ancient and ruined. When they meet Mo, it's still not too bright. He's crippled, but alive and he has a few loyal robots keeping him alive. When he said that he made Beemo for his child, I somehow expected him to have lost his son instead of just never having one. So then they discover a whole city of robots...

There was nothing wrong with this episode, but I guess I just wished it was a little more dark.

Besides that though, they found a city of Beemo's people. What happens next? Beemo leaves and the city gets pushed to the side mostly and only shows up in mentions and special episodes? That's my guess. That's pretty much what happened with Jake's children. The writers keep creating these life changing events and then ignoring them.