Very intriguing! I liked the mechanics, reminded me of "Papers, Please". Pretty sure the robot model is Eve from "Wall-E", but that didn't bother me much. I enjoyed the minimal sound design, too.
I got the same robot in a single playthrough, which was odd considering they're supposed to have unique IDs.
The simple visuals didn't bother me, but it might be better if there was something in the background, like a line of robots waiting for the checkups, for example.
A more complex and challenging version of this would be interesting, and perhaps some story and different-looking robots.