I was moved by the idea of the story, that a robot could become more than the sum of its parts and "evolve" to a point where it had emotions, but the story didn't move me. I didn't feel for any of the characters, not even the robot, and at the end, where Our Hero has his change of heart, that came so quickly that it didn't have any impact -- or, at least, not the right kind of impact -- on me. The worldbuilding -- the universe, not Greenwillow -- was too fast, and the tech couldn't support me through what I thought was a not-that-great story. I guess I wasn't in the right frame of mind to enjoy this one in the same way as the other commenters. But then, I think I often miss the "point" of Resnick stories, in that whatever others say they like, I find myself not liking to the same extent if at all.
I'd like to have known more about the Bironi (which sounds like either an alcoholic drink or an ice cream treat). Why didn't Our Hero address him by name? Was he the only person on Our Hero's ship? And, as for Greenwillow, if it's a farming colony without a lot of money, how did Emily's parents afford a robot as complicated as Sammy? Or were they less expensive back then? More questions than answers -- nice news cliche there, I know.
I also don't care for Steve's "snide, world-weary, vaguely-southern" character voice.
So, in all, not a good EP for me.