AJ was a very proactive and friendly host, but I was too busy to take advantage of that and ask him for recommendations, even though he offered.
The apartment is conveniently located near Columbus Circle where I walked to, but also walking distance (I walk 30 minutes regularly) or a quick drive away from Rockefeller and Grand Central. Opposite the street is a 24-hour deli/convenience store, and there are other markets and CVS stores within 10-minutes of walking.
In such a bitterly cold season, it was nice to return back to the warm apartment at night, which had everything one needs. A home away from home.