The neighborhood is the nicest in Brooklyn. Close to lots of restaurants and stores. It's about a 10 minute walk to Prospect Park, 15 to the Brooklyn Museum and 5 to the subway station that takes you into Manhattan.
The space is two floors plus a couple beds in the finished basement. It's very comfortable. The beds were great (memory foam) and the bedrooms were dark and quiet. We slept great.
The hosts were in another living space in the building so it was easy to ask for eating and traveling recommendations, which they appropriately gave.
I would stay in this unit again as it provides convenient access to many NYC sites in a comfortable, safe and historic location.