This was my first time in New York, as well as in the US, and I couldn't have asked for a more welcoming & friendly host than Mario. He was relaxed and generous, and gave us lots of local knowledge about what to do & where to go.
The flat's location is fantastic, just a short subway ride to the main sights. Brooklyn Heights is great to return to after a day of sightseeing - calmer than mad Manhattan (and safer too) but still 20-30 restaurants/cafes literally on the same street. Again, Mario had spot-on advice about where to eat.
The room was very spacious and comfortably accommodated us (2 blokes both 6'6") on a double bed each. We also made use of the very well-equipped kitchen.
Would recommend for anyone wanting to see NYC!