I spent six months in Nathans apartment and enjoyed it a lot.
It's on the second floor in a great UES location, so you'll find everything you need right around the corner.
Honest pictures - what you see is what you get. It's nice that the two bedrooms are in each end of the apartment, i.e. no walk-through.
The apartment was nice and clean upon my arrival, and equipped with the basics. Anything I missed was provided by Nathan right away.
The neighbours were lovely, which made me feel safe and comfortable living there alone most of the time.
The only drawback was the shared stairway, which is very worn.
The major advantage was the location (close to wonderful Central Park!) and Nathans responsiveness and willingness to solve every little issue fast and in a very professional manner.