The Sugar Hill Guest House is highly recommendable:
A clean guest house, the apt is located in a quiet neighbourhood, everything that is needed is provided (towels, shampoo, shower gel, dish washer, fridge, bedlinen, etc.) and there are supermarkets and nice restaurants nearby.
Furthermore, it is just a 5-minutes ride to Central Park (when taking the Express train)

The description sent to us was self-explaining and we were able to find the apt and let ourselves in without any problems.

Thank you very much.