We reserved a room at Diana's for 3 weeks during the summer after I had a baby and my mom came to visit. Diana was a terrific hostess and the perfect combination of very warm/welcoming, helpful yet unobtrusive. Her home is centrally located in the heart of Park Slope on a beautiful tree-lined street, just a short walk from Grand Army Plaza, Prospect Park and multiple subway lines including the 2/3, Q, B and R trains.
The room itself was on the second floor of Diana's charming and well-maintained brownstone, and although there are multiple guest rooms on the floor and the space is well-suited for hosting larger families/groups, my mom had the floor to herself as Diana does not host multiple groups at the same time (ie you don't have to share a bathroom with people you don't know). The location and setup are perfect for people who don't want to spend a ton of money on a tiny Manhattan hotel room but still want easy access into the City, folks visiting family members, wedding guests and the like.
The room itself was spacious and comfortable, very well lit and clean -- exactly what we were looking for. My mom had a great stay and we'd definitely recommend this host to others!