We had a very pleasant stay at Birgitta's lovely house in Park Slope. Excellent location, close to subways, cafes and restaurants and a grocery stores. We couldn't have been more happy with the area, and I would recommend everybody to stay in Park Slope.
Birgitta was an excellent host, and always easy accessible via email or phone. She even arranged for us to have late checkout since we had a very late flight home.
Only a few negative things to mention, was that the locks and doorhandles were in a poor condition and should be changed. Also we never got the cable tv to work, however we could use their Netflix account free of charge. Anyways we didn't come to NY to watch tv. :-)
All in all I give Birgitta my best recommendations.