Florencia's place is conveniently located in the cool Williamsburg neighborhood, 5 minutes from Lorimer Station with access to Manhattan via the L line.
The room was very spacious (it was a gallery, with the bed on the top) and bed was comfortable and clean. Same goes for the shared facilities.
The area is residential but not always quiet -- sometimes there's construction work going on and the aircon is loud so you might want to grab a pair or two of earplugs (nothing too bad though).
Florencia and her partner are lovely artists, very friendly and welcoming and had good recommendations on things to do. I highly recommend them if you're looking for a room in Brooklyn!