I've actually seen three women at that micro, and Nini twice.
Remarkably, there is very little difference between the service routines they all do.
I suspect they were trained by the same person.
And their physical differences are also slight - similar age, similar size.
I was going to say that Nini has a better command of English, but closer to the truth is that Nini's English is less terrible.
But I don't go there for conversation.
When I call them next time, I'll probably ask for Nini.