For a first stay in NYC, that was a great one! It'll be difficult to find more awesome guests than Arthur & Ed. They set the bar very high.
First, the location: Chelsea district ideally located for all south Manhattan points of interest (from Freedom Tower to Central Park).
The flat itself is really great: private room and bathroom with a nice view on the Highline. The other rooms are nice too ... and the rooftop! Not an high one like on other buildings but still nice to enjoy.
Concerning Arthur and Ed, they gave us so many addresses where to enjoy the city as New Yorkers. We had the opportunity to enjoy some dinners with them and their friends, yet another way to enjoy good time with locals. They were very keen to answer to any of our questions, discuss about the city, ...
To sum up, the next trip to NYC should lead to Arthur & Ed's once more!