New Yorkers who know about this place have been very comfortable with you not knowing. Locals in New York do not share their best steakhouse easily.
They will recommend it to close friends with specific instructions and a follow-up text asking how it went. They will not post about it.
They will not tag the location. The restaurant stays exactly as good as it is precisely because the wrong crowd has not found it yet and the right crowd is in no hurry to change that…