I stayed at Guerline's place with 3 friends. We had a very good stay. Guerline gave us a very warm welcome. She is willing to tell you all about NYC and gives you good advice of where to go. She responds very quick to answers, which is very plesant.
The is apartment is clean and well furnished. Beds are good. very nice kitchen. So if you are looking for a place to stay in Brooklyn, Guerline's place is a very good place to stay.
It will take you about 35 minutes with the subway to get to Manhattan. Which is in NY terms, not that far :)
When you stay at Guerline's, go to ice hockey game to the NY icelanders. Their venue is close to the appartement at it is so much fun to visit a sports game in USA.
Have fun!