We had a great time at Francheska's apartment. Even though you can tell that the room is part of an old building and hasn't been fully renovated yet, everything was very clean and nice! Francheska was super easy to communicate with and caringly supported us with any question/issues we had during our stay.
The apartment's location is absolutely top notch, J and L lines are equally close and cool Williamsburg is full of cute shops, cafes, bars and restaurants.
It was mentioned before but there's a bar nearby that you probably will hear on Friday and Saturday nights. But with the great AC on and earplugs I actually barely heard anything from the street.
All in all a really great experience, would definitely recommend!!