Lefferts Garden area. Really nice neighborhood.
The apartment is across the street from Prospect Park (5 min walk from Zoo and Botanic Garden), right around the corner from the Prospect Park MTA Subway Station (Q and B Lines). 25 min from Manhattan, and a block away from a large commercial avenue (Flatbush Ave) where you can find loads of restaurants, bars, and all sort of stores (groceries, salons, pharmacies, etc.).
For more info about the apartment see description on picture's captions.