*This is a review by a person who lived in Park Slope for many years in the (not distant) past*:
You won't find a better location and a more accommodating host than Elizabeth and her listing.
It's right by everything you want for your Park Slope experience (the best restaurants in the neighborhood, Subway station, bars, etc).
Her place is very well lit and has beautiful full-size windows on both the front (bottom floor) and rear (bottom+top floor) sides of the duplex.
[for people who aren't familiar with "NYC living"]: The building and apartment are oldish, as most buildings here are, so know that this apartment is in good condition and size compared to what's out there.
The place feels like a home more than an Airbnb so there are many items by the owner, and for a prime-Slope apartment, the value here is really great.