If there’s one thing luxury apartment hunters in Manhattan scrutinize more than their potential new home’s features, it would have to be the amenities being offered in the building they choose to inhabit. From grand swimming pools to state-of-the-art fitness centers, New York’s luxury rental buildings are putting out a stunning variety of amenities to lure in potential residents. Interestingly enough, out of all these dazzling services, it is the hotel-style concierge service that’s become an increasingly in-demand amenity in New York City apartment buildings.